2018 West Nile Virus Activity

The Sacramento-Yolo Mosquito and Vector Control District’s ongoing surveillance program has not detected West Nile virus activity in Sacramento or Yolo counties to date in 2018. Archived data is available for 2007 activity, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, and 2016. 2017 data will be published shortly.