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Fordham Tick Index

The Weekend Deer Tick Index

June 11 through 13, 2021:

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

The Tick App ( is a collaboration between the Midwest and Northeast Center of Excellence in Vector-borne Disease. It gives you information on how to identify ticks, remove them, report tick bites, and find out what tick activity is like in your area. A bonus is that if you download the free app and report your tick encounters, you can help research efforts in both parts of the country.  

For further information, contact Thomas Daniels.