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: 2016-2017 Influenza Season
Local influenza activity began increasing during the week of December 11th, with a substantial increase in positive influenza tests during the last week of December (December 25 - 31, 2016).
This season, we will be releasing an influenza surveillance update report during the following approximate time periods: winter 2016, early 2017, and spring 2017.