Marin Influenza Surveillance
Marin County Department of Health and Human Services tracks influenza activity by analyzing laboratory testing data and visits to local emergency departments for influenza-like illness. During the influenza season, we produce an influenza surveillance report that summarizes influenza activity in Marin County, California, and the United States.
We usually observe a peak in influenza activity between late December and February.
Current Marin Influenza Activity: 2017-2018 Influenza Season
This season, we will be releasing an influenza surveillance update report during the following approximate time periods: winter 2017, early 2018, and spring 2018.The following are the Influenza Surveillance Update Reports for the 2016-2017 influenza season: