West Nile virus-positive dead birds
by County and City California, 2017

(2017-04-30) - Source: http://www.westnile.ca.gov

Orange County
Irvine1
Total Positives for Orange County: 1
 
San Diego County
Valley Center1
Total Positives for San Diego County: 1
 
San Mateo County
Redwood City1
Total Positives for San Mateo County: 1

Total Positives for all Counties: 3

Source: Vector-Borne Disease Section, California Department of Public Health