Surge in Emergency Room Visits Due to Tick Bites in the U.S.

Emergency room visits related to tick bites in the United States have reached their highest level in nearly a decade, with the latest data from the U.S. Centers for Disease Control and Prevention (CDC) indicating 71 visits per 100,000 people. This marks a significant increase from the average of approximately 30 visits for this time of year. The Northeast region is particularly affected, reporting 163 tick-related ER visits per 100,000, followed by the Midwest, Southwest, West, and South Central regions.

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Experts attribute this surge in tick bites to several factors, including an early start to the tick season and a potential increase in tick populations. Dr. John J. Halperin, a neurologist at Atlantic Health Overlook Medical Center in New Jersey, noted that while increased awareness may lead to more people seeking medical attention, there appears to be a genuine rise in tick numbers. The warming climate is also contributing to this trend, as ticks thrive in humid conditions and are expanding their range northward.

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Ticks are known vectors for numerous diseases, responsible for 90% of all vector-borne diseases in the U.S. Common tick-borne illnesses include Lyme disease, Rocky Mountain spotted fever, anaplasmosis, ehrlichiosis, Powassan virus, and babesiosis. Lyme disease, particularly prevalent in the Northeast, Mid-Atlantic, and Midwest, affects approximately 89,000 individuals annually. Additionally, ticks can transmit Alpha-gal syndrome, which causes allergic reactions to red meat and dairy products.

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To mitigate the risk of tick bites, the CDC recommends several preventive measures. Individuals should be aware of tick habitats, avoiding grassy and brushy areas when possible. The use of EPA-registered insect repellents containing DEET or picaridin is advised, along with treating clothing and gear with permethrin. Wearing long sleeves and pants, performing full-body tick checks after outdoor activities, and showering soon after returning indoors can further reduce exposure.

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Dr. Halperin emphasized the importance of vigilance during this peak tick season, stating, “We’re running well above historic average and even well above last year. The ticks have started a little earlier. There seems to be a lot of them.” The CDC continues to stress the significance of preventive measures to protect against tick bites and the diseases they may carry.

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While the data indicates a clear increase in tick-related ER visits, there is ongoing debate regarding the extent to which increased awareness versus actual population growth of ticks is contributing to this trend. Further research is needed to clarify these dynamics and their implications for public health.

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• “We're running well above historic average and even well above last year,” — Dr. John J. Halperin, Neurologist, Atlantic Health Overlook Medical Center

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• “Ticks don’t take a winter vacation, and as long as temperatures stay above freezing, they remain active and looking for blood,” — Dina Fonseca, Expert on Tick Biology, Rutgers University-New Brunswick

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