Hometop nav spacerAbout ARStop nav spacerHelptop nav spacerContact Ustop nav spacerEn Espanoltop nav spacer
Printable VersionPrintable Version     E-mail this pageE-mail this page
United States Department of Agriculture Agricultural Research Service
Search
 
 
 
National Programs
International Programs
Find Research Projects
The Research Enterprise
Office of Scientific Quality Review
Research Initiatives
 
You are here: Research /

Title: TOXOPLASMOSIS AND NEOSPOROSIS

Authors
item Dubey, Jitender
item Lappin, Michael - COLORADO S U FT COLLINS

Submitted to: Infectious Diseases of Dogs and Cats
Publication Type: Book / Chapter
Publication Acceptance Date: June 25, 2005
Publication Date: August 1, 2005
Citation: Dubey, J.P., Lappin, M.R. 2005. Toxoplasmosis and neosporosis. In: Greene, C.E., editor. Infectious Diseases of Dogs and Cats. St. Louis, MO: Saunders-Elsevier. p. 754-775.

Interpretive Summary: Toxoplasma gondii is a single-celled parasite of all warm-blooded hosts worldwide. It causes mental retardation and loss of vision in children, and abortion in livestock. Cats are the main reservoir of T. gondii because they are the only hosts that can excrete the resistant stage (oocyst) of the parasite in the feces. Humans become infected by eating undercooked meat from infected animals and food and water contaminated with oocysts. Scientists at the Beltsville Agricultural Research Center and the Colorado State Univ. review toxoplasmosis in cats.

Technical Abstract: Toxoplasma gondii is an obligate intracellular coccidian parasite that infects virtually all species of warm blooded animals, including people. Domestic cats and other Felidae are the definitive hosts. All nonfeline hosts are intermediate hosts. There are three infectious stages: sporozoites in oocysts, tachyzoites (actively multiplying stage), and bradyzoites (slowly multiplying stage) enclosed in tissue cysts. Oocysts are excreted in feces, whereas tachyzoites and bradyzoites are found in tissues.

   
 
 
Last Modified: 06/20/2013
ARS Home | USDA.gov | Site Map | Policies and Links 
FOIA | Accessibility Statement | Privacy Policy | Nondiscrimination Statement | Information Quality | USA.gov | White House