West Nile Virus has been detected in Berthoud. Current Vector Index is 1.32.
West Nile Virus (WNV) has once again been detected in Berthoud. The Vector Index (VI) which measures the level of risk of WNV in an area is currently 1.32. A VI above 0.5 predicts cases of WNV will occur in humans and a VI above 1.0 is strongly correlated with increased human cases. As long as WNV is detected in the area, it is important to protect yourself with the 4 Ds.