Current Influenza Strains Circulating
I cannot provide real-time information about which specific influenza strains are currently circulating in your state, as the evidence provided contains historical data from past influenza seasons (2009-2024) rather than current surveillance data.
How to Find Current Strain Information
To determine the predominant influenza strains circulating right now in your area, you should:
Check the CDC's FluView Interactive dashboard at www.cdc.gov/flu/weekly/fluviewinteractive.htm, which provides weekly updated surveillance data on circulating influenza strains by region and state 1
Contact your state health department for local influenza surveillance reports, as they track predominant strains and activity levels in real-time 1
Review WHO's FluNet database for global influenza surveillance data if you need international context 2
Historical Patterns to Inform Expectations
While I cannot tell you what's circulating today, understanding recent patterns may be helpful:
Recent seasonal patterns show that:
Influenza A(H1N1)pdm09, A(H3N2), and influenza B viruses (both Victoria and Yamagata lineages) have co-circulated in recent years, with the predominant strain varying by season 1, 2
The 2023-2024 season was predominantly influenza A(H1N1)pdm09, though A(H3N2) and B viruses also co-circulated 3
H3N2-predominant seasons are typically associated with higher severity, increased hospitalizations, and greater mortality, particularly in young children and older adults 1
Influenza activity in the United States typically peaks between December and February, though peak activity can occur as late as April or May 1, 2
Why Real-Time Data Matters
Knowing the current predominant strain is clinically important because:
Vaccine effectiveness varies significantly by strain, with recent seasons showing VE ranging from 9% against A(H3N2) to 76% against influenza B/Victoria in children 1
H3N2 seasons are associated with higher pediatric mortality and hospitalization rates compared to H1N1 or B-predominant seasons 1
Treatment decisions and chemoprophylaxis strategies may be influenced by local strain circulation patterns and resistance profiles 1, 2
For current, actionable information about circulating strains in your state, access the CDC FluView dashboard or contact your state health department directly.