Epi Week #31 - 2017 General Statements

July 30 – August 5

We have now had 64 WNV-positive mosquito pools, with WNV activity in every single mainland county in the state. Given current trends in mosquito populations, temperature, and regular rain events, it is likely WNV levels will continue to build. In contrast, Culiseta melanura levels remain lower than average, and there have still been no EEV+ pools found.

Weather

Rain was mainly limited to the middle of the state this past week, with hotspots of 3 inches or more in Worcester and Middlesex Counties

Precipitation in MA for EPI Week 31, 2017

As this report goes to press, we are ending a week of hot, sunny days and cool, almost crisp evenings, and heading into showers expected through the weekend. Expect above-average precipitation and average temperatures (possibly above-average on the coast) for Epi Week 32.