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Lyme disease
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Diagram of the life cycle of the black-legged tick (Ixodes scapularis), showing seasonal stages from engorged female laying eggs in spring, larva and nymph stages feeding on animal and human hosts in summer, and adult ticks on hosts in fall and winter. Arrows indicate progression through each stage, with illustrations of ticks and typical hosts such as deer, horses, dogs, and humans.
How to stop ticks from spreading disease
Tick-borne disease cases in the United States skin rash caused by Lyme disease
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Diagram of the life cycle of the black-legged tick (Ixodes scapularis), showing seasonal stages from engorged female laying eggs in spring, larva and nymph stages feeding on animal and human hosts in summer, and adult ticks on hosts in fall and winter. Arrows indicate progression through each stage, with illustrations of ticks and typical hosts such as deer, horses, dogs, and humans.
Tick life cycle The life cycle of the hard tick Ixodes scapularis, a carrier of the bacterium that causes Lyme disease in humans, requires two years for completion. Eggs are deposited in the spring, and larvae emerge several weeks later and feed once during the summer, usually on the blood of small mammals.

Lyme disease

tick-borne bacterial disease
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Lyme disease, tick-borne bacterial disease that is named for the town in the U.S. state of Connecticut in which it was first observed. The disease was first conclusively identified in 1975 and has since been identified in every region of the United States and in Europe, Asia, Africa, and Australia. It is the most common tick-borne disease in North America and Europe. Lyme disease is caused by several closely related spirochetes (corkscrew-shaped bacteria), including primarily...

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