Science

How to know if you have Lyme disease, which affects 300,000 Americans yearly

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Keep this in mind the next time you go for a hike in a wooded or grassy area: Tiny critters called deer ticks often carry Lyme-disease-causing bacteria, which is spread by their bite. May is Lyme Disease Awareness Month — and recent CDC estimates suggest Lyme disease, once thought of as fairly rare, is actually 10 times as common as we previously thought and infects roughly 300,000 Americans annually.

So long as it's treated quickly and properly, Lyme disease isn't too serious of a health issue. Untreated, however, Lyme can result in severe problems like meningitis or even partial paralysis, and the symptoms may not show up until a week or even years after a bite.

BI Graphics_Symptoms of Lyme disease
Samantha Lee/Business Insider

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Erin was a senior health and tech reporter at Business Insider based in San Francisco, where she focused on startups and Silicon Valley. She's broken news on a variety of life science and health-tech stories, including: Before joining BI, Erin worked as a freelance health and science reporter for outlets including Newsweek, Popular Science, and Scientific American. Erin graduated summa cum laude from the University of California, San Diego and received her master's from the Newmark Graduate School of Journalism in New York, where she spent an extra semester completing her degree after breaking both wrists in a snowboarding accident.
Samantha is the Senior Graphics Editor for Business Insider. She graduated from Baruch College with a BBA in Computer Information Systems and Graphic Communications. See more BI work here. Feel free to creep her portfolio.