Click here for the West Nile Seasonal July 24th, 2017

Click here for the West Nile Seasonal July 24th, 2017

Based on all data available towards the end of July, we expect to see 63 cases in SD in 2017. This forecast is slightly up from that of previous weeks, owing to higher humidity and the presence of additional positive mosquito pools in counties that had not previously reported any. In every probable future we see substantial disease transmission. We note in particular that if the humidity continues to rise above historical averages, then so will the risk to human populations.