Influenza Testing and Variant Influenza A Virus Detection

Description

The 2025 city and county fairs and agricultural events season in Wisconsin is underway. During recent seasons, swine exhibitions at agricultural fairs and other direct or indirect exposure to swine have been associated with human infections caused by variant influenza A viruses that include influenza A(H3N2)v, A(H1N2)v, and A(H1N1)v. 

Memo Issued By
DPH
Official Memo Number
BCD 2024-02 Replaced by
Supersedes Number
BCD 2023-01
Memo Issue Date
June 6, 2024
Discontinued date
July 9, 2025

Glossary

 
Last revised September 16, 2025