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United States Department of Agriculture

Agricultural Research Service

Ticktalk

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Lyme disease- Spread by black-legged deer ticks, Lyme disease is caused by a spiral-shaped bacterium called Borrelia burgdorferi. Once it is passed into the human bloodstream by a tick, the bacterium quickly multiplies. It causes flu-like symptoms that can include headache, joint pain and nausea. A bulls-eye rash also often forms around a tick bite area. The Northeastern and Mid-Atlantic states account for most reported cases of Lyme disease, according to the federal Centers for Disease Control and Prevention, in Atlanta, Georgia.
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Spores - Strong capsules or pods in which fungi can survive outside a natural host or withstand harsh environmental conditions until they become more favorable for growth.
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Arachnids - Differ from insects in that these creatures sport eight legs, instead of six. Arachnids include ticks, spiders and mites.
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Last Modified: 2/14/2011
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