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North American deer collision risks and health concerns

Updated 3 times since CLSTR started tracking revisions of this situation.

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2026-10-19 16:40 UTC → 2026-10-22 18:27 UTC · added removed

Authorities in North America, particularly in the United States, have issued warnings to motorists regarding an increased risk of deer-vehicle collisions. This heightened danger is attributed to the annual fall mating season, or “the rut,” which typically occurs between October and December. Data indicates significant collision rates across various regions. In the United States, states such as New York, New Jersey, and Kansas have reported high numbers of accidents, while Wisconsin has noted that 42% of its deer-related crashes occur during the rutting months. National insurance data shows In Wisconsin, the Department of Transportation reports that deer are considered the most frequent targets deadliest animals for humans in animal collision claims, the U.S. due to their unpredictable behavior. While monthly crashes in Wisconsin typically range between 1,000 and 1,500, these numbers more than double during October and November; in 2025, crashes rose to over 2,500 in October and nearly 3,500 in November. Motorcyclists face specific risks, with drivers facing a 1 in 145 37% chance of such an encounter. serious injury or fatality in deer-related crashes. In New Jersey, the Department of Environmental Protection noted that the risk is expected to intensify following the end of daylight saving time on November 1. Delaware officials reported that between 2021 and 2025, the state recorded 8,401 deer-related crashes resulting in 312 injuries. Recent reports highlight additional complexities in Michigan and Missouri. In Michigan, officials have identified a surge in Epizootic Hemorrhagic Disease (EHD) across 12 counties. Transmitted by biting midges, the virus causes high fever and internal bleeding; while it can reduce local populations, officials note that herds typically recover quickly and the disease cannot be transmitted to humans. The Michigan Department of Natural Resources is encouraging the public to report dead wildlife to monitor the outbreak. In Missouri, deer-related accidents remain a major concern, with 2,951 recorded crashes in 2024 resulting in 420 injuries and four deaths. Experts advise drivers to review insurance policies, noting that comprehensive coverage is typically required for direct strikes, while collision coverage may apply if a maneuver to avoid a deer leads to a secondary impact.

Versions

  1. 2026-10-22 18:27 UTC North American deer collision risks and health concerns
  2. 2026-10-19 16:40 UTC North American deer collision risks and health concerns
  3. 2026-10-18 16:28 UTC North American deer collision risks during mating season
  4. 2026-10-17 23:06 UTC North American deer collision risks during mating season

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