Health Advisory

Influenza: Increased Activity in Vermont

To:     Health Care Providers, Hospitals, and Ambulatory Care Centers
From: Patsy Kelso, State Epidemiologist for Infectious Disease
Date: April 3, 2012

– Please Distribute Widely –        

The Vermont Department of Health has reported an increase from sporadic to regional influenza activity in the past week. Regional influenza activity means that reports of influenza-like illness are increasing, and that outbreaks have been reported in at least two of Vermont’s five influenza surveillance regions.

This has been a late and mild season so far, according to the Centers for Disease Control & Prevention. Influenza viruses identified to date include 2009 H1N1 virus, influenza A (H3) viruses and influenza B viruses. Although influenza A (H3) viruses have predominated nationally so far this season, circulating viruses differ from region to region, and even state to state. Tested viruses this season remain susceptible to the antiviral drugs oseltamivir and zanamivir, with the exception of two 2009 H1N1 viruses that were oseltamivir resistant.

Information for Health Care Providers

Influenza Surveillance
This site provides information about Vermont, regional and national influenza activity, laboratory test results from the Vermont Department of Health Laboratory, and trends in influenza-like illness visits to selected Vermont hospital emergency departments and outpatient settings. Information is updated each Wednesday, reflecting the previous week’s activity.

Surveillance testing: The Vermont Department of Health Laboratory performs
influenza testing primarily for public health surveillance purposes to document influenza activity in the community. Influenza RT-PCR testing to confirm influenza and determine type is performed at the Laboratory on Tuesday and Friday of each week, or by prior arrangement. To make arrangements for testing, call the Laboratory at 802-863-7336.  Please call Epidemiology for additional information about vaccines or infection control.

2011-2012 influenza antiviral medications summary

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