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Fordham Tick Index

The Weekend Deer Tick Index

October 25, 2021

The Tick Index has ceased publication for the season. We will resume publication when tick activity begins in the Spring of 2022.

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Tick Index

The Fordham Tick Index is an estimate of the risk of being bitten by a nymphal or adult deer tick. Both of these stages are active at this time of year, although the smaller nymph is responsible for many more cases of Lyme disease. This index measures risk relative to other times of year. For more information about preventing tick bites, controlling ticks, Lyme disease and other illnesses ticks carry, visit the Centers for Disease Control and Prevention.

The Fordham Tick Index is provided as a weekly public service by Fordham University and is based on both current and historical data from one site in Westchester County, N.Y. It is an estimate only. Actual risk may vary geographically. Therefore, always take precautions to prevent tick bites when outdoors.

Regional Map for Tick Index including:  Manhattan, Bronx, Queens, Brooklyn, Staten Island, Nassau, Suffolk, Hudson, Essex

Tick Fact of the Week

Two Hyalomma tick species actively seek out hosts. Able to recognize an animal up to 30 feet away, they can run along the ground and track a potential host for 10 minutes, traveling up to 100 meters. Luckily, they are not (yet) in the United States.

For further information, contact Thomas Daniels.