West Nile virus-positive dead birds
by County and City California, 2018

(2018-03-19) - Source: http://www.westnile.ca.gov

San Mateo County
Foster City1
Total Positives for San Mateo County: 1
Santa Clara County
Mountain View1
Palo Alto1
Total Positives for Santa Clara County: 2

Total Positives for all Counties: 3

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