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Fordham Tick Index

Fordham Tick Index

The Tick Index for the week of October 24 through 31, is:


Questing Adult Deer Ticks
Photo by James Vellozzi

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 website.

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.

  01 = Low risk.
Enjoy the outdoors, but take precautions.

05 = Moderate risk.
Ticks are fairly abundant. Use caution.

10 = High risk.
Limit exposure and use extreme caution. If you’re thinking of taking a hike, consider going to a movie instead.
Nilgai antelope, native to India but introduced into the US in the 1930s, have adapted well to coastal areas of Texas.  And Rhipicephalus ticks responsible for transmitting the cattle tick fever agent have adapted well to Nilgai.  Aerial hunting of Nilgai is underway in an attempt to control cattle fever ticks that can, in turn, have a severe impact on the cattle industry. 
For background on the Tick Index, see:
"What We Talk About When We Talk About Ticks"

For futher information, contact Thomas Daniels
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