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insect bite and sting: Media
Videos
Why do mosquito bites itch?
Here's a gross fact: a female mosquito's mouth consists of multiple tubes.
Video: Encyclopædia Britannica, Inc.
Images
skin rash caused by Lyme disease
Visible alterations in the texture of the skin, such as rashes and hives, can be...
James Gathany/Centers for Disease Control and Prevention
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