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United States Department of Agriculture

Agricultural Research Service

Related Topics

Oliver C Kwok
Animal Parasitic Diseases Laboratory
Microbiologist

Phone: (301) 504-8984
Fax: (301) 504-9222
Room 103

10300 BALTIMORE AVENUE
BLDG 1040 BARC-EAST
BELTSVILLE , MD 207052350


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Toxoplasmosis in geese and detection of two new atypical Toxoplasma gondii strains from naturally infected Canada geese (Branta canadensis) -
Verma, S.K., Calero-Bernal, R., Cerqueira-Cezar, C.K., Kwok, O.C., Dudley, M.R., Jiang, T., Su, C., Hill, D.E., Dubey, J.P. 2016. Toxoplasmosis in geese and detection of two new atypical Toxoplasma gondii strains from naturally infected Canada geese (Branta canadensis). Parasitology Research. 15(5):1767-72.
Seroprevalence and isolation of viable Toxoplasma gondii from raptors in the southeastern USA -
Love, D., Kwok, O.C., Verma, S.K., Dubey, J.P., Bellah, J. 2016. Seroprevalence and isolation of viable Toxoplasma gondii from raptors in the southeastern USA. Journal of Wildlife Diseases. (N/A).
Isolation and genetic characterization of Toxoplasma gondii from naturally infected Canada goose (Branta canadensis) detected two new atypical strains -
Verma, S.K., Calero-Bernal, R., Cerqueira-Cezar, C.K., Kwok, O.C., Dudley, M.R., Su, C., Hill, D.E., Dubey, J.P. 2016. Isolation and genetic characterization of Toxoplasma gondii from naturally infected Canada goose (Branta canadensis) detected two new atypical strains. Parasitology Research. 115(5):1767-72.
Antibody detection and molecular characterization of toxoplasma gondii from bobcats (Lynx rufus), domestic cats (Felis catus), and wildlife from Minnesota, USA -
Verma, S.K., Minicucci, L., Murphy, D., Carstensen, M., Humpal, C., Wolf, P., Calero-Bernal, R., Cerqueira-Cezar, C., Kwok, O.C., Su, C., Hill, D.E., Dubey, J.P. 2016. Antibody detection and molecular characterization of toxoplasma gondii from bobcats (Lynx rufus), domestic cats (Felis catus), and wildlife from Minnesota, USA. Journal of Eukaryotic Microbiology. 63:567-571.
Epidemiology, prevalence, and genetic characterization of Toxoplasma gondii in felids and other wildlife from Minnesota, USA -
Bayesian estimation of sensitivity and specificity of the modified agglutination test and bioassay for detection of Toxoplasma gondii in free-range chickens -
Dubey, J.P., Kwok, O.C., Gardner, I. 2015. Bayesian estimation of sensitivity and specificity of the modified agglutination test and bioassay for detection of Toxoplasma gondii in free-range chickens. Parasitology. 143:314-319.
Toxoplasmosis in sentinel chickens (Gallus domesticus) in New England farms: seroconversion, distribution of tissue cysts in brain, heart, and skeletal muscle by bioassay in mice and cats -
Dubey, J.P., Lehmann, T., Lautner, F., Kwok, O.C., Gamble, R. 2015. Toxoplasmosis in sentinel chickens (Gallus domesticus) in New England farms: seroconversion, distribution of tissue cysts in brain, heart, and skeletal muscle by bioassay in mice and cats. Veterinary Parasitology. 214:55-58.
Isolation and genetic characterization of viable Toxoplasma gondii from tissues and feces of cats from the central region of China -
Yang, Y., Ying, Y., Verma, S., Cassinelli, A., Kwok, O.C., Liang, H., Pradhan, A., Su, C., Zhu, X., Dubey, J.P. 2015. Isolation and genetic characterization of viable Toxoplasma gondii from tissues and feces of cats from the central region of China. Veterinary Parasitology. 211(3-4):283-288.
Characterization of the Eimeria maxima sporozoite surface protein IMP1 -
Jenkins, M.C., Fetterer, R.H., Miska, K.B., Tuo, W., Kwok, O.C., Dubey, J.P. 2015. Characterization of the Eimeria maxima sporozoite surface protein IMP1. Veterinary Parasitology. doi: 10.1016/jvetpar2015.05.009.
Low prevalence of Neospora caninum and Toxoplasma gondii antibodies in dogs in Jilin, Henan and Anhui Provinces of the People’s Republic of China Reprint Icon -
Yang, Y., Zhang, Q., Kong, Y., Ying, Y., Kwok, O.C., Llang, H., Dubey, J.P. 2014. Low prevalence of Neospora caninum and Toxoplasma gondii antibodies in dogs in Jilin, Henan and Anhui Provinces of the People’s Republic of China. BioMed Central (BMC) Veterinary Research. 10:295.
Isolation and genetic characterization of Toxoplasma gondii from black bears (Ursus americanus), bobcats (Felis rufus), and feral cats (Felis catus) from Pennsylvania -
Dubey, J.P., Verma, S., Calero-Bernal, R., Cassinelli, A., Kwok, O.C., Van Why, K., Su, C., Humphreys, J. 2014. Isolation and genetic characterization of Toxoplasma gondii from black bears (Ursus americanus), bobcats (Felis rufus), and feral cats (Felis catus) from Pennsylvania. Journal of Eukaryotic Microbiology. DOI: 10.1111/jeu.12196.
Seroprevalence of toxoplasma gondii in white-tailed deer and free-roaming cats across a suburban to urban gradient in northeastern Ohio -
Ballash, G., Dubey, J.P., Kwok, O.C., Shoben, A., Terry, R., Kraft, T., Dennis, P. 2014. Seroprevalence of toxoplasma gondii in white-tailed deer and free-roaming cats across a suburban to urban gradient in northeastern Ohio. EcoHealth. doi: 10.1007/s10393-014-0975-2.
Isolation and genetic characterization of Toxoplasma gondii from alpaca (Vicugna pacos) and sheep (Ovis aries) grazed on pasture in Virginia Reprint Icon -
Dubey, J.P., Cassey, S., Zajac, A., Wildeus, S., Lindsay, D., Verma, S., Oliveira, S., Kwok, O.C., Su, C. 2014. Isolation and genetic characterization of Toxoplasma gondii from alpaca (Vicugna pacos) and sheep (Ovis aries) grazed on pasture in Virginia. Tropical Animal Health and Production. 46:1503-1507.
Detection and survival of Toxoplasma gondii in milk and cheese from experimentally infected goats Reprint Icon -
Dubey, J.P., Verma, S., Ferreira, L., Cassinelli, A., Yuging, Y., Kwok, O.C., Tuo, W., Chiesa, O., Jones, J. 2014. Detection and survival of Toxoplasma gondii in milk and cheese from experimentally infected goats. Journal of Food Protection. 77:1747–1753.
Epidemiology of toxoplasmosis in white tailed deer (Odocoileus virginianus): occurrence, congenital transmission, correlates of infection, isolation, and genetic characterization of Toxoplasma gondii -
Dubey, J.P., Dennis, P., Verma, S., Choudhary, S., Ferreira, L., Oliviera, S., Kwok, O.C., Butler, E., Carstensen, M., Su, C. 2014. Epidemiology of toxoplasmosis in white tailed deer (Odocoileus virginianus): occurrence, congenital transmission, correlates of infection, isolation, and genetic characterization of Toxoplasma gondii. Veterinary Parasitology. 202:27-275.
Isolation of viable neospora caninum from brains of wild gray wolves (canis lupus) Reprint Icon -
Dubey, J.P., Jenkins, M.C., Ferreira, L., Choudhary, S., Verma, S., Kwok, O.C., Fetterer, R.H., Butler, E., Carstensen, M. 2014. Isolation of viable neospora caninum from brains of wild gray wolves (canis lupus). Veterinary Parasitology. 201:150-153.
Use of filter papers to determine seroprevalence of Toxoplasma gondii among hunted ungulates Reprint Icon -
Aston, E., Mayer, P., Bowman, D., Mohammed, H., Liotta, J., Kwok, O.C., Dubey, J.P. 2014. Use of filter papers to determine seroprevalence of Toxoplasma gondii among hunted ungulates. International Journal for Parasitology: Parasites and Wildlife. 3:15-19.
Toxoplasma gondii seroprevalence in donkeys (Equus asinus) from the U.S.A. and isolation of T. gondii from cats on donkey farms -
Dubey, J.P., Ness, S.L., Kwok, O.C., Choudhary, S., Mittel, L., Divers, T. 2014. Toxoplasma gondii seroprevalence in donkeys (Equus asinus) from the U.S.A. and isolation of T. gondii from cats on donkey farms. Veterinary Parasitology. 199:18-23.
Isolation and genetic characterization of Toxoplasma gondii from mute swan (Cygnus olor) from the USA -
Dubey, J.P., Choudhary, S., Kwok, O.C., Ferreira, L., Oliveira, S., Verma, S., Marks, D., Perdersen, K., Mickley, R., Randall, A., Arsone, D., Su, C. 2013. Isolation and genetic characterization of Toxoplasma gondii from mute swan (Cygnus olor) from the USA. Veterinary Parasitology. 195:42-46.
Isolation and genetic characterization of Toxoplasma gondii in the mongoose (Herpestes auropunctatus) in Grenada, West Indies -
Choudhary, S., Zieger, U., Sharma, R., Chikweto, A., Tiwari, K., Ferreira, L., Oliveira, S., Barkley, L., Verma, S., Kwok, O.C., Su, C., Dubey, J.P. 2013. Isolation and genetic characterization of Toxoplasma gondii in the mongoose (Herpestes auropunctatus) in Grenada, West Indies. Journal of Zoo and Wildlife Medicine. 44:127-1130.
Seroprevalence of Toxoplasma gondii from free-range chickens (Gallus domesticus) from Addis Adaba, Ethiopa Reprint Icon -
Tilahun, G., Tiao, N., Ferreira, L.R., Choudhary, S., Oliveira, S., Verma, S.K., Kwok, O.C., Molla, B., Saville, W., Medhin, G., Kassa, T., Aleme, H., Gebreyes, W., Su, C., Dubey, J.P. 2013. Seroprevalence of Toxoplasma gondii from free-range chickens (Gallus domesticus) from Addis Adaba, Ethiopa. Journal of Parasitology. 99: 740-741.
A new atypical genotype mouse virulent strain of Toxoplasma gondii isolated from the heart of a wild caught puma (Felis concolor) from Durango, Mexico Reprint Icon -
Dubey, J.P., Alvarado-Esquivel, C., Herrera-Valenzuela, V., Gayosso-Dominguez, E., Oliveira, S., Verma, S., Choudhary, S., Kwok, O.C., Su, C. 2013. A new atypical genotype mouse virulent strain of Toxoplasma gondii isolated from the heart of a wild caught puma (Felis concolor) from Durango, Mexico. Veterinary Parasitology. 197:674-677.
Isolation and genetic characterization of Toxoplasma gondii from the gray wolf Canis lupus -
Dubey, J.P., Choudhary, S., Ferreira, L., Kwok, O.C., Butler, E., Carstensen, M., Yu, L., Su, C. 2013. Isolation and genetic characterization of Toxoplasma gondii from the gray wolf Canis lupus. Veterinary Parasitology. 197:685-690.
Occurrence, isolation, and genetic characterization of Toxoplasma gondii from white tailed deer (Odocoileus virginianus) in New Jersey -
Dubey, J.P., Randall, A., Choudhary, S., Ferreira, L., Verma, S., Oliveira, S., Kwok, O.C., Su, C. 2013. Occurrence, isolation, and genetic characterization of Toxoplasma gondii from white tailed deer (Odocoileus virginianus) in New Jersey. Journal of Parasitology. 99:763-769.
Congenital transmission of Neospora caninum in white tailed deer (Odocoileus virginianus) Reprint Icon -
Dubey, J.P., Jenkins, M.C., Kwok, O.C.H., Ferreira, L.R., Choudhary, S., Verma, S.K., Villena, I., Butler, E., Carstensen, M., 2013. Congenital transmission of Neospora caninum in white tailed deer (Odocoileus virginianus). Vet Parasitol. 196:519-522.
Isolation and characterization of new genetic types of toxoplasma gondii and prevalence of trichinella murrelli from black bear (Ursus americanus) Reprint Icon -
Dubey, J.P., Hill, D.E., Zarlenga, D.S., Choudhary, S., Ferreira, L., Oliveira, S., Verna, S., Kwok, O.C., Driscoll, C., Spiker, H., Su, C. 2013. Isolation and characterization of new genetic types of toxoplasma gondii and prevalence of trichinella murrelli from black bear (Ursus americanus). Veterinary Parasitology. 196:24-30.
Genotyping Toxoplasma gondii from wildlife in Pennsylvania and identification of natural recombinants virulent to mice Reprint Icon -
Dubey, J.P., Why, K., Verma, S., Choudhary, S., Kwok, O.C., Khan, A., Behinke, M., Sibley, L., Ferreira, L., Weaver, M., Stewart, R., Su, C. 2014. Genotyping Toxoplasma gondii from wildlife in Pennsylvania and identification of natural recombinants virulent to mice. Veterinary Parasitology. 200(2014):74-84.
Isolation of Viable Toxoplasma gondii from Tissues and Feces of Cats from Addis Ababa, Ethiopia -
Dubey, J.P., Darrington, C., Tiao, N., Ferreira, L., Choudhary, S., Molla, B., Saville, W., Tilahun, G., Kwok, O.C., Gebreyes, W. 2013. Isolation of Viable Toxoplasma gondii from Tissues and Feces of Cats from Addis Ababa, Ethiopia. Journal of Parasitology. 99:56-58.
High prevalence of Toxoplasma gondii infection in Ethiopian cats in Addis Ababa, coinfection, and a review of toxoplasmosis in humans and other animals in Ethiopia -
Tiao, N., Darrington, C.L., Molla, B., Saville, W.A., Tilahun, G., Kwok, O.C., Gebreyes, W.A., Lappin, M.R., Jones, J.L., Dubey, J.P. 2013. High prevalence of Toxoplasma gondii infection in Ethiopian cats in Addis Ababa, coinfection, and a review of toxoplasmosis in humans and other animals in Ethiopia. Epidemiology and Infection. 141:1029-1033.
Seroprevalence of Toxoplasma gondii and concurrent Bartonella spp., feline immunodeficiency virus, feline leukemia virus, and Dirofilaria immitis infections in Egyptian cats -
Al-Kappany, Y.M., Lappin, M.R., Kwok, O.C., Abu-Elwafa, S.A., Hilali, M., Dubey, J.P. 2011. Seroprevalence of Toxoplasma gondii and concurrent Bartonella spp., feline immunodeficiency virus, feline leukemia virus, and Dirofilaria immitis infections in Egyptian cats. Journal of Parasitology. 97:256-258.
Seroprevalence of Neospora caninum in free-range chickens (Gallus domesticus) from the Americas -
Martins, J., Kwok, O.C., Dubey, J.P. 2011. Seroprevalence of Neospora caninum in free-range chickens (Gallus domesticus) from the Americas. Veterinary Parasitology. dx.doi.org/10.1016/j.vetpar.2011.05.023.
Genetic characterization of Toxoplasma gondii in wildlife from North America revealed widespread and high prevalence of the fourth clonal type -
Dubey, J.P., Velmurugan, G., Rajendran, C., Yabsley, M., Thomas, N.J., Beckman, K.B., Sinnett, D., Ruid, D., Paul, W., Hart, J., Fair, P.A., Mcfee, W.E., Shearn-Bochsler, V., Kwok, O.C., Ferreira, L., Choudhary, S., Faria, E.B., Zhou, H., Felix, T.A., Su, C. 2011. Genetic characterization of Toxoplasma gondii in wildlife from North America revealed widespread and high prevalence of the fourth clonal type. International Journal for Parasitology. 41:1139-1147.
Gray wolf (Canis lupus) is a natural definitive host for Neospora caninum -
Dubey, J.P., Jenkins, M.C., Chellaiah, R., Miska, K.B., Ferreira, L., Martins, J., Kwok, O.C., Choudhary, S. 2011. Gray wolf (Canis lupus) is a natural definitive host for Neospora caninum. Veterinary Parasitology. 181:382-387.
Prevalence of antibodies to Toxoplasma gondii in dogs from northeastern Portugal -
Lopes, A.P., Santos, H., Neto, F., Rodrigues, M., Kwok, O.C., Dubey, J.P., Carduso, L. 2011. Prevalence of antibodies to Toxoplasma gondii in dogs from northeastern Portugal. Journal of Parasitology. 97:418-420.
Detection of antibodies against Sarcocystis neurona, neospora spp., and Toxoplasma gondii in horses from Costa Rica -
Dangoudoubiyam, S., Oliveira, J.B., Viquez, C., Gomez-Garcia, A., Gonzalez, O., Romero, J.J., Kwok, O.C., Dubey, J.P., Howe, D.K. 2011. Detection of antibodies against Sarcocystis neurona, neospora spp., and Toxoplasma gondii in horses from Costa Rica. Journal of Parasitology. 97:522-524.
High prevalence of toxoplasmosis in cats from Egypt: isolation of viable Toxoplasma Gondii, tissue distribution, and isolate designation -
Al-Kappany, Y., Rajendran, C., Ferreira, L., Kwok, O.C., Abu-Elwafa, S., Hilali, M., Dubey, J.P. 2010. High prevalence of toxoplasmosis in cats from Egypt: isolation of viable Toxoplasma Gondii, tissue distribution, and isolate designation. Journal of Parasitology. 96:1115-1118.
Serological and parsitological prevalence of Toxoplasma gondii in wild birds from Colorado -
Dubey, J.P., Felix, T.A., Kwok, O.C. 2010. Serological and parsitological prevalence of Toxoplasma gondii in wild birds from Colorado. Journal of Parasitology. 96:937-938.
Toxoplasmosis in sand cats (Felis margarita) and other animals in the Breeding Centre for Endangered Arabian Wildlife in the United Arab Emirates -
Dubey, J.P., Pas, A., Chellaiah, R., Kwok, O.C., Su, C. 2010. Toxoplasmosis in sand cats (Felis margarita) and other animals in the Breeding Centre for Endangered Arabian Wildlife in the United Arab Emirates. Veterinary Parasitology. 172:195-203.
A new atypical highly mouse virulent Toxoplasma gondii genotype isolated from a wild black bear in Alaska -
Dubey, J.P., Chellaiah, R., Ferreira, L.R., Kwok, O.C., Sinnett, D., Majumdar, D., Su, C. 2010. A new atypical highly mouse virulent Toxoplasma gondii genotype isolated from a wild black bear in Alaska. Journal of Parasitology. 96:713-716.
New Toxoplasma gondii genotypes isolated from free-range chickens from the Fernando de Noronha, Brazil: unexpected findings -
Dubey, J.P., Chellaiah, R., Costa, D.G., Ferreria, L.R., Kwok, O.C., Qu, D., Su, C., Marvulo, M.F., Alves, L.C., Mota, R.A., Silva, J.C. 2010. New Toxoplasma gondii genotypes isolated from free-range chickens from the Fernando de Noronha, Brazil: unexpected findings. Journal of Parasitology. 96:709-712.
Seroprevalence of Toxoplasma gondii and concurrent bartonella spp., feline immunodeficiency virus, and feline leukemia infections in cats from Grenada, West Indies -
Dubey, J.P., Lappin, M.R., Kwok, O.C., Mofya, S., Chikweto, A., Baffa, A., Doherty, D., Shakier, J., Macpherson, C.N., Sharma, R.N. 2009. Seroprevalence of Toxoplasma gondii and concurrent Bartonella spp., feline immunodeficiency virus, and feline leukemia infections in cats from Grenada, West Indies. Journal of Parasitology. 95:1129-1133.
Isolation and characterization of viable Toxoplasma gondii isolates revealed possible high frequency of mixed infection in feral cats (felis domesticus) from St. Kitts, West Indies -
Dubey, J.P., Moura, L., Sundar, N., Velmurugan, G.V., Kwok, O.C., Kelly, P., Krecek, R.C., Majumdar, D., Su, C. 2009. Isolation and characterization of viable Toxoplasma gondii isolates revealed possible high frequency of mixed infection in feral cats (felis domesticus) from St. Kitts, West Indies. Parasitology. 136:589-594.
Seroprevalence of Neospora caninum and Toxoplasma gondii antibodies in white tailed deer (odocoileus virginianus) from Iowa and Minnesota using four serologic tests -
Dubey, J.P., Jenkins, M.C., Kwok, O.C., Zink, R.L., Michalski, M.L., Ulrich, V., Gill, J., Cartensen, M., Thulliez, P. 2009. Seroprevalence of Neospora caninum and Toxoplasma gondii antibodies in white-tailed deer (odocoileus virginianus) from Iowa and Minnesota using four serologic tests. Veterinary Parasitology. 161:330-334.
ISOLATION OF TOXOPLASMA GONDII FROM ANIMALS IN DURANGO, MEXICO -
Dubey, J.P., Velmurugan, G.V., Alvarado-Esquivel, C., Alvarado-Esquivel, D., Rodriquez-Pena, S., Martinez-Garcia, S., Gonzalez-Herrara, A., Ferreira, L.R., Kwok, O.C., Su, C. 2009. Isolation of Toxoplasma gondii from animals in Durango, Mexico. Journal of Parasitology. 95:319-322.
SEROPREVALENCE OF TOXOPLASMA GONDII ANTIBODIES IN CATS FROM PENNSLYVANIA -
Dubey, J.P., Bhatia, C., Ferreira, L., Thorn, A., Kwok, O.C. 2009. Seroprevalence of Toxoplasma gondii antibodies in cats from Pennsylvania. Journal of Parasitology. 95:578-580.
TOXOPLASMOSIS IN CAPTIVE DOLPHINS (TURSIOPS TRUNCATUS) AND WALRUS (ODOBENUS ROSMRUS) -
Dubey, J.P., Mergl, J., Gehring, E., Sundar, N., Velmurugan, G., Kwok, O.C., Grigg, M., Su, C., Martineau, D. 2009. Toxoplasmosis in captive dolphins (Tursiops truncatus) and walrus (Odobenus rosmarus). Journal of Parasitology. 95:82-85.
SEROPREVALENCE OF NEOSPORA CANINUM AND TOXOPLASMA GONDII IN BLACK TAILED DEER (ODOCOILEUS HEMIONUS COLUMBIANUS) AND MULE DEER (ODOCOILEUS HEMIONUS HEMIONUS) -
Dubey, J.P., Mansfield, K., Hall, B., Kwok, O.C., Thulliez, P. 2008. Seroprevalence of neospora caninum and toxoplasma gondii in black-tailed deer (odocoileus hemionus columbianus) and mule deer (odocoileus hemionus hemionus). Veterinary Parasitology. 156:310-313.
NEOSPORA CANINUM ANTIBODIES IN WILD CARNIVORES FROM SPAIN -
Sobrino, R., Dubey, J.P., Pabon, M., Linarez, N., Kwok, O.C., Millan, J., Arnal, M., Luco, D., Lopez-Gatius, F., Thulliez, P., Gortazar, C., Almeria, S. 2008. Neospora caninum antibodies in wild carnivores from spain. Veterinary Parasitology. 155:190-197.
TOXOPLASMA GONDII AND NEOSPORA CANINUM ANTIBODIES IN DOGS FROM GRENADA, WEST INDIES -
Dubey, J.P., Stone, D., Kwok, O.C., Sharma, R.N. 2008. Toxoplasma gondii and neospora caninum antibodies in dogs from Grenada, West Indies. Journal of Parasitology. 94:750-751.
Transplacental toxoplasmosis in naturally-infected white-tailed deer: isolation and genetic characterization of Toxoplasma gondii from foetuses of different gestational ages -
Dubey, J.P., Velmurugan, G.V., Ulrich, V., Gill, J., Carstebseb, N., Sundar, N., Kwok, O.C., Thulliez, P., Su, C. 2008. Transplacental toxoplasmosis in naturally-infected white-tailed deer: isolation and genetic characterization of Toxoplasma gondii from foetuses of different gestational ages. International Journal for Parasitology. 38:1057-1063.
ISOLATION OF TOXOPLASMA GONDII FROM BOTTLENOSE DOLPHINS (TURSIOPS TRUNCATUS) -
Dubey, J.P., Fair, P.A., Sundar, N., Velmurugan, G., Kwok, O.C., Mcfee, W.E., Majumdar, D., Su, C. 2008. Isolation of toxoplasma gondii from bottlenose dolphins (tursiops truncatus). Journal of Parasitology. 94:821-823.
Toxoplasma gondii infection in lambs: high prevalence of live parasites, and genetic characterisation of T. gondii isolates revealed new genotypes -
Dubey, J.P., Sundar, N., Hill, D.E., Velmurugan, G.V., Bandini, L.A., Kwok, O.C., Su, C. 2008. Toxoplasma gondii infection in lambs: high prevalence of live parasites, and genetic characterisation of T. gondii isolates revealed new genotypes. International Journal for Parasitology. 38:999-1006.
RH: DUBEY ET AL.-TOXOPLASMA GONDII FROM CATS IN PUERTO RICO MOUSE VIRULENT TOXOPLASMA GONDII ISOLATED FROM FERALCATS IN MONA ISLAND, PUERTO RICO -
Dubey, J.P., Lopez-Torres, N.Y., Sundar, N., Velmurugan, G.V., Kwok, O.C., Hill, R., Su, C. 2007. Mouse-virulent Toxoplasma gondii from feral cats in Mona Island, Puerto Rico. Journal of Parasitology. 93:1265-1369.
ISOLATION AND GENETIC CHARACTERIZATION OF TOXOPLASMA GONDII FROM RACCOONS (PROCYON LOTOR), CATS (FELIS DOMESTICUS), STRIPED SKUNK (MEPHITIS MEPHITIS), BLACK BEAR (URSUS AMERICANUS), AND COUGAR (PUMA CONCOLOR) FROM CANADA -
Dubey, J.P., Quirk, T., Pitt, J.A., Sundar, N., Velmurugan, G., Kwok, O.C., Leelair, D., Hill, R., Su, C. 2008. Isolation and genetic characterization of toxoplasma gondii from raccoons (Procyon lotor), cats (Felis domesticus), striped skunk (Mephitis mephitis), black bear (Ursus americanus), and cougar (Puma concolor) from Canada. Journal of Parasitology. 9:42-45.
T. GONDII IN FREE-RANGE CHICKENS SEROPREVALENCE AND ISOLATION OF TOXOPLASMA GONDII FROM FREE-RANGE CHICKENS FROM GHANA, INDONESIA, ITALY, POLAND, AND VIETNAM -
Dubey, J.P., Huong, L.T., Lawson B, W.L., Subekti, D.T., Tassi, P., Cabaj, W., Sundar, N., Velmurugan, G.V., Kwok, O.C., Su, C. 2008. T. gondii in free-range chickens: seroprevalence and isolation of toxoplasma gondii from free-range chickens from Ghana, Indonesia, Italy, Poland, and Vietnam. Journal of Parasitology. 94:68-71.
Neosporosis in Beagle dogs clinical signs, diagnosis, treatment, isolation and genetic characterization of Neospora caninum. -
Dubey, J.P., Vianna M, C.R., Kwok, O.C., Hill, D.E., Miska, K.B., Tuo, W., Velmurugan, G.V., Conors, M., Jenkins, M.C. 2007. Neosporosis in Beagle dogs clinical signs, diagnosis, treatment, isolation and genetic characterization of Neospora caninum. Veterinary Parasitology. 149:158-166.
Isolation and genotyping of Toxoplasma gondii from Ugandan chickens reveals frequent multiple infections -
Lindstrom, I., Sundar, N., Lindh, J., Kironde, F., Kwok, O.C., Kabasa, J.D., Dubey, J.P., Smith, J.E. 2008. Isolation and genotyping of Toxoplasma gondii from Ugandan chickens reveals frequent multiple infections. Parasitology. 135:39-45.
CHARACTERIZATION OF TOXOPLASMA GONDII FROM RACCOONS (PROCYON LOTOR), COYOTES (CANIS LATRANS ), AND STRIPED SKUNKS (MEPHITIS MEPHITIS) IN WISCONSIN IDENTIFIED SEVERAL ATYPICAL GENOTYPES -
Dubey, J.P., Sundar, N., Nolden, C.A., Samuel, M.D., Velmurgan, G.V., Bandini, L., Kwok, O.C., Bodenstein, B., Su, C. 2007. Characterization of Toxoplasma gondii from raccoons (Procyon lotor), coyotes (Canis latrans ), and striped skunks (Mephitis mephitis) in Wisconsin identified several atypical genotypes. Journal of Parasitology. 93:1524-1527
Endemic avian toxoplasmosis on a farm in Illinois: clinical disease, diagnosis, biologic and genetic characteristics of Toxoplasma gondii isolates from chickens (Gallus domesticus), and a goose (Anser anser) -
Dubey, J.P., Webb, D.M., Sundar, N., Velmurugan, G.V., Bandini, L.A., Kwok, O.C., Su, C. 2007. Endemic avian toxoplasmosis on a farm in Illinois: clinical disease, diagnosis, biologic and genetic characteristics of Toxoplasma gondii isolates from chickens (Gallus domesticus), and a goose (Anser anser). Veterinary Parasitology. 148:207-212.
Endemic toxoplasmosis in pigs on a farm in Maryland: Isolation and genetic characterization of toxoplasma gondii. -
Dubey, J.P., Hill, D.E., Sundar, N., Velmurugan, G.V., Bandini, L.A., Kwok, O.C., Pierce, V., Kelly, K., Dulin, M., Su, C. 2008. Endemic toxoplasmosis in pigs on a farm in Maryland: Isolation and genetic characterization of toxoplasma gondii. Journal of Parasitology. 94:36-41.
NEOSPORA CANINUM AND TOXOPLASMA GONDII ANTIBODIES IN DOGS FROM DURANGO CITY, MEXICO -
Dubey, J.P., Alvarado-Esquivel, C., Liesenfeld, O., Herrera-Flores, R.G., Ramirez-Sanchez, B.E., Gonzalez-Herrera, A., Martinez-Garcia, S.A., Bandini, L.A., Kwok, O.C. 2007. Neospora caninum and toxoplasma gondii antibodies in dogs from Durango City, Mexico. Journal of Parasitology. 93:1033-1035.
Molecular and biological characterisation of Toxoplasma gondii isolates from free-range chickens from Guyana, South America identified several unique and common parasite genotypes -
Dubey, J.P., Applewhaite, L., Sundar, N., Velmurugan, G.V., Bandini, A., Kwok, O.C., Hill, R., Su, C. 2007. Molecular and biological characterisation of Toxoplasma gondii isolates from free-range chickens from Guyana, South America identified several unique and common parasite genotypes. Parasitology. 134:1559-1566.
Evaluation of four serological techniques to determine the seroprevalence of Neospora caninum in foxes (Vulpes vulpes) and coyotes (Canis latrans) on Prince Edward Island, Canada -
Wapenaar, W., Barkema, H.W., Schares, G., Rouvinen-Watt, K., Zeijlemaker, L., Poorter, B., O’Handley, R.M., Kwok, O.C., Dubey, J.P. 2007. Evaluation of four serological techniques to determine the seroprevalence of Neospora caninum in foxes (Vulpes vulpes) and coyotes (Canis latrans) on Prince Edward Island, Canada. Veterinary Parasitology. 145:51-58.
Prevalence of Toxoplasma gondii in dogs from Sri Lanka and genetic characterization of the parasite isolates -
Dubey, J.P., Rajapakse, R.P., Wijesundera, R.R., Sundar, N., Kwok, O.C., Su, C. 2007. Prevalence of Toxoplasma gondii in dogs from Sri Lanka and genetic characterization of the parasite isolates. Veterinary Parasitology. 146:341-346.
Genetic and biologic characterization of Toxoplasma gondii isolates of cats from China -
Dubey, J.P., Zhu, X.Q., Sundar, N., Zhang, H., Kwok, O.C., Su, C. 2007. Genetic and biologic characterization of Toxoplasma gondii isolates of cats from China. Veterinary Parasitology. 145:352-356.
DIVERSE AND ATYPICAL GENOTYPES IDENTIFIED IN TOXOPLASMA GONDII FROM DOGS IN SÃO PAULO, BRAZIL -
Dubey, J.P., Gennari, S.M., Sundar, N., Vianna Mannola, C.B., Bandini, L.M., Yai, L.E., Kwok, O.C., Su, C. 2007. Diverse and atypical genotypes identified in Toxoplasma gondii from dogs in São Paulo, Brazil. Journal of Parasitology. 93:60-64.
Comparison of serological methods for the diagnosis of Neospora caninum infection in cattle -
Wapenaar, W., Barkema, H.W., Van Leeuwen, J.A., Mc Clure, J.T., O'Handley, R.M., Kwok, O.C., Thulliez, P., Dubey, J.P., Jenkins, M.C. 2007. Comparison of serological methods for the diagnosis of Neospora caninum infection in cattle. Veterinary Parasitology. 143:166-173.
BIOLOGIC AND GENETIC COMPARISON OF TOXOPLASMA GONDII ISOLATES IN FREE-RANGE CHICKENS FROM THE NORTHERN PARÁ STATE AND THE SOUTHERN STATE RIO GRANDE DO SUL, BRAZIL REVEALED HIGHLY DIVERSE AND DISTINCT PARASITE POPULATIONS -
Dubey, J.P., Sundar, N., Gennari, S.M., Minervino, A.H., Farias, N., Ruas, J.L., Santos, T., Cavalcante, G.T., Kwok, O.C., Su, C. 2007. Biologic and genetic comparison of Toxoplasma gondii isolates in free-range chickens from the northern pará state and the southern state Rio Grande do Sul, Brazil revealed highly diverse and distinct parasite populations. Veterinary Parasitology. 143:182-188.
BIOLOGIC AND GENETIC CHARACTERISTICS OF TOXOPLASMA GONDII IN FREE-RANGE CHICKENS FROM NICARAGUA, CENTRAL AMERICA -
Dubey, J.P., Su, C., Pineda, N., Kyvsgaard, N.C., Sundar, N., Luna, L.A., Rimbaud, E., Oliveira, J.B., Qi, Y., Kwok, O.C. 2006. Biologic and genetic characteristics of Toxoplasma gondii in free-range chickens from Nicaragua, Central America. Veterinary Parasitology. 142:47-53.
PREVALENCE OF TOXOPLASMA GONDII IN RATS (RATTUS NORVEGICUS) IN GRENADA, WEST INDIES -
Dubey, J.P., Bhaiyat, M.I., Macpherson, C.L., De Allie, C., Chikweto, A., Kwok, O.C., Sharma, R.N. 2006. Prevalence of Toxoplasma gondii in rats (Rattus norvegicus) in Grenada, West Indies. Veterinary Parasitology. 92:1107-1108.
CHARACTERIZATION OF TOXOPLASMAA GONDII ISOLATES IN FREE-RANGE CHICKENS FROM CHILE, SOUTH AMERICA -
Dubey, J.P., Patitucci, A.N., Su, C., Sundar, N., Kwok, O.C., Shen, S.K. 2006. Characterization of Toxoplasmaa gondii isolates in free-range chickens from Chile, South America. Veterinary Parasitology. 140:76-82.
CHARACTERIZATION OF TOXOPLASMA GONDII ISOLATES FROM CATS FROM COLOMBIA, SOUTH AMERICA -
Dubey, J.P., Su, C., Vecino, J.C., Sundar, N., Gomez, J.E., Lora, F., Jimenez, J., Kwok, O.C., Shen, S.K., Zhang, X., Nieto, A. 2006. Characterization of Toxoplasma gondii isolates from cats from Colombia, South America. Veterinary Parasitology. 141:42-47.
BIOLOGIC AND GENETIC CHARACTERISTICS OF TOXOPLASMA GONDII ISOLATES IN FREE-RANGE CHICKENS FROM COSTA RICA, CENTRAL AMERICA -
Dubey, J.P., Su, C., De Ikuverua, J.B., Morales, J.A., Bolanos, R.V., Sundar, N., Kwok, O.C., Shen, S.K. 2006. Biologic and genetic characteristics of toxoplasma gondii isolates in free-range chickens from costa rica, central america. Veterinary Parasitology. 139:29-36.
GENETIC AND BIOLOGIC CHARACTERISTICS OF TOXOPLASMA GONDII ISOLATES IN FREE-RANGE CHICKENS FROM COLUMBIA, SOUTH AMERICA -
Dubey, J.P., Gomez, J.E., Bedoya, A., Lora, F., Vianna, M., Hill, D.E., Kwok, O.C., Shen, S.K., Marcet, P.L., Lehmann, T. 2005. Genetic and biologic characteristics of toxoplasma gondii isolates in free-range chickens from Columbia, South America. Veterinary Parasitology. 134:67-72.
PREVALENCE OF VIABLE TOXOPLASMA GONDII IN BEEF, CHICKEN, AND PORK FROM RETAIL MEAT STORES IN THE UNITED STATES AND RISK ASSESMENT TO CONSUMERS -
Dubey, J.P., Hill, D.E., Jones, J.L., Hightower, A.W., Kirkland, E., Roberts, J.M., Marcet, P.L., Lehmann, T., Vianna, M., Miska, K.B., Sreekumar, C., Kwok, O.C., Shen, S.K., Gamble, H.R. 2005. Prevalence of viable toxoplasma gondii in beef, chicken, and pork from retail meat stores in the united states and risk assesment to consumers. Journal of Parasitology 91:1082-1093.
GENETIC AND BIOLOGIC CHARACTERISTICS OF TOXOPLASMA GONDII INFECTIONS IN FREE-RANGE CHICKENS FROM AUSTRIA -
Dubey, J.P., Edelhofer, R., Marcet, P., Vianna, M., Kwok, O.C., Lehmann, T. 2005. Genetic and biologic characteristics of Toxoplasma gondii infections in free-range chickens from Austria. Veterinary Parasitology 133:299-306.
A COMPARISON OF FOUR SEROLOGIC TESTS TO DETECT ANTIBODIES TO TOXOPLASMA GONDII IN NATURALLY-EXPOSED BOTTLENOSE DOLPHINS (TURSIOPS TRUNCATUS). -
Dubey, J.P., Fair, P.A., Bossart, G.D., Hill, D.E., Fayer, R., Sreekumar, C., Kwok, O.C., Thulliez, P. 2005. A comparison of four serologic tests to detect antibodies to toxoplasma gondii in naturally-exposed bottlenose dolphins (tursiops truncatus). Journal of Parasitology. 91:1074-1081.
ISOLATION, TISSUE DISTRIBUTION, AND MOLECULAR CHARACTERIZATION OF TOXOPLASMA GONDII FROM CHICKENS FROM GRENADA, WEST INDIES. -
Dubey, J.P., Bhalyat, M.I., Miska, K.B., Macpherson, C.N., Sharma, R.N., Sreekumar, C., Hill, D.E., Shen, S.K., Kwok, O.C., Lehmann, T. 2004. Isolation, tissue distribution, and molecular characterization of toxoplasma gondii from chickens from Grenada, West Indies. Journal of Parasitology. 91(3):557-560.
BIOLOGIC, MORPHOLOGIC AND MOLECULAR CHARACTERIZATION OF NEOSPORA CANINUM ISOLATES FROM LITTERMATE DOGS -
Dubey, J.P., Sreekumar, C., Knickman, E., Miska, K.B., Vianna, M., Kwok, O.C., Hill, D.E., Jenkins, M.C., Lindsay, D.S., Greene, C.E. 2004. Biologic, morphologic and molecular characterization of neospora caninum isolates from littermate dogs (Abstract). COST 454 Annual Conference, Protozoal Reproduction Losses in Farm Ruminants. p.1.
FIRST BIOLOGIC AND GENETIC CHARACTERIZATION OF TOXOPLASMA GONDII ISOLATES FROM CHICKENS FROM AFRICA (DEMOCRATIC REPUBLIC OF CONGO, MALI, BURKINA FASO, AND KENYA. -
Dubey, J.P., Karhemere, S., Dahl, E., Sreekumar, C., Diabate, A., Dabire, K.R., Vianna, M.C., Kwok, O.C., Lehmann, T. 2004. First biologic and genetic characterization of Toxoplasma gondii isolates from chickens from Africa (Democratic Republic of Congo, Mali, Burkina Faso, and Kenya. Journal of Parasitology. 91(1):69-72.
CLINICAL, BIOLOGIC, MORPHOLOGIC, AND MOLECULAR CHARACTERISATION OF NEOSPORA CANINUM INFECTIONS IN LITTERMATE DOGS -
Dubey, J.P., Sreekumar, C., Knickman, E., Miska, K.B., Vianna, M.C., Kwok, O.C., Hill, D.E., Jenkins, M.C., Lindsay, D.S., Greene, C.E. 2004. Clinical, biologic, morphologic, and molecular characterisation of neospora caninum infections in littermate dogs. International Journal for Parasitology 34:1157-1167.
TISSUE DISTRIBUTION AND MOLECULAR CHRACTERIZATION OF CHICKEN ISOLATES OF TOXOPLASMA GONDII FROM PERU. -
Dubey, J.P., Levy, M., Sreekumar, C., Kwok, O.C., Shen, S.K., Dahl, E., Thulliez, P., Lehmann, T. 2004. Tissue distribution and molecular chracterization of chicken isolates of toxoplasma gondii from Peru. American Society of Parasitologists 90: 1015-1018.
TISSUE DISTRIBUTION AND MOLECULAR CHARACTEIZATON OF CHICKEN ISOLATES OF TOXOPLASMA GONDII FROM PERU -
Dubey, J.P., Levy, M.Z., Sreekumar, C., Kwok, O.C., Shen, S.K., Dahl, E., Thulliez, P., Lehmann, T. 2004. Tissue distribution and molecular characterization of chicken isolates of Toxoplasma gondii from Peru. Journal of Parasitology. 90(5):1015-1018.
HIGH PREVALENCE OF TOXOPLASMA GONDII IN A COMMERCIAL FLOCK OF CHICKENS IN ISRAEL, AND PUBLIC HEALTH IMPLICATIONS OF FREE-RANGE FARMING. -
Dubey, J.P., Salant, H., Sreekumar, C., Dahl, E., Vianna, M.C., Shen, S.K., Kwok, O.C., Spira, D., Hamburger, J., Lehmann, T.V. 2004. High prevalence of Toxoplasma gondii in a commercial flock of chickens in Israel, and public health implications of free-range farming. Veterinary Parasitology. 121:317-322.
MOLECULAR AND BIOLOGIC CHARACTERISTICS OF ISOLATES OF TOXOPLASMA GONDII FROM WILDLIFE IN THE UNITED STATES -
Dubey, J.P., Graham, D.H., De Young, R.W., Dahl, E., Eberhard, M.L., Nace, E.K., Won, K., Bishop, H., Punkosdy, G., Sreekumar, C., Vianna, M.C., Shen, S.K., Kwok, O.C., Sumners, J.A., Demarais, S., Humphreys, J.G., Lehmann, T. 2003. Molecular and biologic characteristics of isolates of toxoplasma gondii from wildlife in the united states. Journal of Parasitology 90:67-71.
TOXOPLASMA GONDII, NEOSPORA CANINUM, SARCOCYSTIS NEURONA, AND SARCOCYSTIS CANIS-LIKE INFECTIONS IN MARINE MAMMALS -
Dubey, J.P., Zarnke, R., Thomas, N.J., Wong, S.K., Van Bonn, W., Briggs, M., Davis, J.W., Ewing, R., Mensea, M., Kwok, O.C.H., Romand S., Thulliez, P. 2004. Toxoplasma gondii, Neospora caninum, Sarcocystis neurona, and Sarcocystis canis-like infections in marine mammals. Veterinary Parasitology. 116:275-296.
ISOLATION AND MOLECULAR CHARACTERIATOIN OF TOXOPLASMA GONDII FROM CHICKENS AND DUCKS FROM EGYPT -
DUBEY, J.P., GRAHAM, D.H., DAHL, E., HILAI, M., EL-GHAYSH, A., SREEUMAR, C., KWOK, O.C., SHEN, S.K., LEHMANN, T. ISOLATION AND MOLECULAR CHARACTERIATOIN OF TOXOPLASMA GONDII FROM CHICKENS AND DUCKS FROM EGYPT. VETERINARY PARASITOLOGY 114:89-95, 2003.
PREVALENCE OF TOXOPLASMA GONDII IN CHICKENS FROM A HIGHLY ENDEMIC AREA TO HUMANS IN SOUTHERN BRAZIL -
Seipel Da Silva Azer, D., Bahia-Oliveira, L.M., Shen, S.K., Kwok, O.C., Lehman, T., Dubey, J.P. 2003. Prevalence of toxoplasma gondii in chickens from a highly endemic area to humans in southern brazil. Journal of Parasitology 89:394-396.
PREVALENCE OF ANTIBODIES TO NEOSPORA CANINUM AND SARCOCYSTIS NEURONA IN SERA OF DOMESTIC CATS FROM BRAZIL -
Dubey, J.P., Lindsay, D.S., Hill, D.E., Romand, S., Thulliez, P., Kwok, O.C., Silva, J., Oliveira-Camargo, M.C., Gennari, S.M. 2002. Prevalence of antibodies to neospora caninum and sarcocystis neurona in sera of domestic cats from brazil. Journal of Parasitology 88:1251-1252.
OCCURRENCE OF NEOSPORA CANINUM ANTIBODIES IN SERA FROM DOGS OF THE CITY OF SAO PAULO, BRAZIL -
Gennari, S.M., Yai, L.O., D'Auria, S.R., Cardoso, S.S., Kwok, O.C., Jenkins, M.C., Dubey, J.P. 2002. Occurrence of neospora caninum antibodies in sera from dogs of the city of sao paulo, brazil. Veterinary Parasitology 106:177-179.
ESTABLISHMENT OF BESNOITIA DARLINGI FROM OPOSSUMS (DIDELPHIS VIRGINIANA) IN EXPERIMENTAL INTERMEDIATE AND DEFINITIVE HOSTS, PROPAGATION IN CELL CULTURE, AND DESCRIPTION OF ULTRASTRUCTURAL AND GENETIC CHARACTERISTICS -
Dubey, J.P., Lindsay, D.S., Rosenthal, B.M., Sreekumar, C., Hill, D.E., Shen, S.K., Kwok, O.C., Rickard, L.G., Black, S.S., Rashmir-Raven, A. 2002. Establishment of besnoitia darlingi from opossums (didelphis virginiana) in experimental intermediate and definitive hosts, propagation in cell culture, and description of ultrastructural and genetic characteristics. International Journal for Parasitology 32:1053-1064.
BIOLOGICAL AND GENETIC CHARACTERIZATION OF TOXOPLASMA GONDII ISOLATES FROM CHICKENS (GALLUS DOMESTICUS) FROM SAO PAULO, BRAZIL: UNEXPECTED FINDINGS -
SARCOCYSTIS NEURONA INFECTIONS IN RACCOONS (PROCYON LOTOR): EVIDENCE FOR NATURAL INFECTION WITH SARCOCYSTS, TRANSMISSION OF INFECTION TO OPOSSUMS (DIDELPHIS VIRGINIANA), AND EXPERIMENTAL INDUCTION OF NEUROLOGIC DISEASE IN -
ISOLATES OF SARCOCYSTIS FALCATULA-LIKE ORGANISMS FROM SOUTH AMERICAN OPOSSUMS DIDELPHIS MARSUPIALIS AND DIDELPHIS ALBIVENTRIA FROM SAO PAULO, BRAZIL -
FIRST ISOLATION OF NEOSPORA CANINUM FROM THE FECES OF A NATURALLY- INFECTED DOG -
THE GAMMA INTERFERON KNOCK OUT MOUSE MODEL FOR SARCOCYSTIS NEURONA: COM- PARISON OF INFECTIVITY OF SPOROCYSTS AND MEROZOITES, AND ROUTES OF INOCULATION -
DICLAZURIL THERAPY OF GAMMA INTERFERON KNOCKOUT MICE FED SARCOCYSTIS NEURONA SPOROCYSTS -
CHARACTERISTICS OF A RECENT ISOLATE OF SARCOCYSTIS NEURONA (SN7) FROM A HORSE IN OREGON -
SEROLOGIC SURVEY FOR TOXOPLASMA GONDII IN LYNX FROM INTERIOR ALASKA -
FIRST ISOLATION OF SARCOCYSTIS NEURONA FROM THE SOUTH AMERICAN OPOSSUM, DIDELPHIS ALBIVENTRIS, FROM BRAZIL -
PREVELENCE OF SARCOCYSTIS NEURONA SPOROCYSTS IN OPOSSUMS (DIDELPHIS VIRGINIANA) FROM RURAL MISSISSIPPI -
PREVALENCE OF ANTIBODIES TO TOXOPLASMA GONDII IN OSTRICHES (STRUTHIO CAMELUS) -
SEROLOGIC SURVEY OF NEOSPORA CANINUM INFECTION IN A CLOSED DAIRY CATTLE HERD IN MARYLAND: RISK OF SEROLOGIC REACTIVITY BY PRODUCTION GROUPS -
FATAL TOXOPLASMOSIS IN FREE-RANGING ENDANGERED 'ALALA (CORVUS HAWAIIENSIS) FROM HAWAIIENSIS) FROM HAWAII -
SEROLOGIC PREVALENCE OF TOXOPLAMSA GONDII IN HORSES SLAUGHTERED FOR FOOD IN NORTH AMERICA -
SEROLOGIC SURVEY FOR TOXOPLASMA GONDII IN CARIBOU, MOOSE, BISON, DALL SHEEP, WOLF, AND BLACK BEAR FROM ALASKA -
PREVALENCE OF ANTIBODIES TO NEOSPORA CANINUM IN HORSES IN NORTH AMERICA -
INFECTION AND IMMUNITY WITH THE RH STRAIN OF TOXOPLAMSA GONDII IN RATS -
TOXOPLASMA GONDII ANTIBODIES IN NATURALLY EXPOSED WILD COYOTES, RED FOXES, AND GRAY FOXES AND SEROLOGIC DIAGNOSIS OF TOXOPLASMOSIS IN RED FOXES FED T.GONDII OOCYSTS AND TISSUE CYSTS -
PREVALENCE OF NEOSPORA CANINUM AND TOXOPLASMA GONDII ANTIBODIES IN SERA FROM CAMELS FROM EGYPT -
CANINE NEOSPOROSIS: CLINICAL SIGNS, DIAGNOSIS, TREATMENT AND ISOLATION OF NEOSPORA CANINUM IN MICE AND CELL CULTURE -
PROTECTIVE IMMUNITY TO TOXOPLASMOSIS IN PIGS FED IRRADIATED TOXOPLASMA GONDII OOCYSTS -
SEROPREVALENCE OF NEOSPORA CANINUM AND TOXOPLASMA GONDII ANTIBODIES IN WATER BUFFALOES (BUBALUS BUBALIS) FROM EGYPT -
LOW SEROPRVALENCE OF TOXOPLASMA GONDII IN 1,264 FERAL PIGS FROM A REMOTE OSSABAW ISLAND -
ANTIBODY RESPONSES OF COWS DURING AN OUTBREAK OF NEOSPOROSIS EVALUATED BY INDIRECT FLUORESCENT ANTIBODY TESTS AND ENZYME LINKED IMMUNOSORBENT ASSAYS -
OOCYST-INDUCED MURINE TOXOPLASMOSIS: LIFE CYCLE, PATHOGENICITY AND STAGE CONVERSION IN MICE FED TOXOPLASMA GONDII OOCYSTS -
TOXOPLASMOSIS IN RATS (RATTUS NORVEGICUS): CONGENITAL TRANSMISSION TO FIRST AND SECOND GENERATION PUPS AND ISOLATION OF TOXOPLASMA GONDII FROM SERONEGATIVE RATS -
ANTIBODY RESPONSES MEASURED BY VARIOUS SEROLOGIC TESTS IN PIGS ORALLY INOCULATED WITH LOW NUMBERS OF TOXOPLASMA GONDII OOCYSTS -
SEROLOGIC SURVEY FOR TOXOPLASMA GONDII IN GRIZZLY BEARS (URSU ARCTOS) FROM ALASKA, 1973 TO 1987 -
KILLING OF TOXOPLASMA GONDII OOCYSTS BY IRRADIATION -
INFECTIVITY OF LOW NUMBERS OF TOXOPLASMA GONDII OOCYSTS TO PIGS -
HUMAN INDOLEAMINE 2,3-DIOXYGENASE INHIBITS TOXOPLASMA GONDII GROWTH IN FIBROBLAST CELLS -
Last Modified: 5/2/2016
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