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Jan 22, 2021 · A new study by CDC researchers provides a county-level map of the presence of such ticks confirmed to be carrying the bacteria that cause Lyme disease—though the distribution of ticks that can carry it is much wider. (Image courtesy of U.S. Centers for Disease Control and Prevention)
May 14, 2024 · Lyme disease bacteria causing human infection in the United States are spread to people by blacklegged ( Ixodes) ticks. In general, infected ticks must be attached for more than 24 hours to transmit infection; prompt tick removal can prevent transmission.
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How do ticks get infected with Lyme disease?
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LYME DISEASE. Lyme disease is caused by bacteria called Borrelia. Ticks can attach to any part of the human body but prefer hard-to-see areas such as the groin, armpits, and scalp. In most cases, the tick must be attached and fill with blood before Lyme disease bacteria can be transmitted.
Use our interactive Data Explorer to visualize tickborne disease-related maps and download the data for further exploration. Our innovative tool is designed to inspire research and scientific collaboration.
Current map: Total Lyme Disease Cases Reported by CDC 1990–2021. Click a state to view yearly history. (Trouble viewing? Allow page to load first.) Printer-friendly map (PDF)
A color-coded map depicts Lyme rates by county, with pale yellow representing near-absence of the disease and deep red for areas with the highest incidence. Aucott points out that Lyme is a geographically expanding disease, and "this dashboard will allow people to see that Lyme is coming their way," he says.
How to remove a tick. Use fine-tipped tweezers to grasp the tick as close to the skin’s surface as possible. Pull upward with steady, even pressure to remove the tick. Avoid twisting or jerking. Clean the bite area and your hands with rubbing alcohol or soap and water. Remove the tick as soon as possible to reduce your chances of getting an ...
