Variant influenza virus infections : recommendations for identification, treatment, and prevention for summer and fall 2022
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Variant influenza virus infections : recommendations for identification, treatment, and prevention for summer and fall 2022

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  • English
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    • Corporate Authors:
      Centers for Disease Control and Prevention (U.S.)
    • Description:
      Distributed via the CDC Health Alert Network

      August 30, 2022, 3:00 PM ET

      CDCHAN-00473

      The Centers for Disease Control and Prevention (CDC) is issuing this Health Alert Network (HAN) Health Advisory to provide updates on recent variant influenza virus infections and summarize CDC’s recommendations for identification, treatment, and prevention of variant influenza virus infection for the summer and fall of 2022.

      Five cases of human infection with influenza viruses that usually spread only in pigs, also known as variant influenza virus infections, were reported to CDC in August 2022. These cases include three infections with influenza A(H3N2) variant (A(H3N2)v) virus and two infections with influenza A(H1N2)v virus. These cases were identified in West Virginia (3), Oregon (1), and Ohio (1). Four of the five cases reported exposure to pigs or attendance at an agricultural fair prior to illness, and one reported no contact with pigs or attendance at an agricultural fair prior to illness. Clinical characteristics of these cases have been similar to those of seasonal influenza infections and have included fever, cough, pharyngitis, myalgia, and headache. No hospitalizations or deaths have occurred among these five cases, and all patients are recovering or have recovered from their illnesses. To date, no person-to- person spread associated with the five recent variant influenza virus infections has been identified.

    • Subjects:
    • Series:
      HAN ; 473
    • Document Type:
      HAN Health Update
    • Place as Subject:
    • Location:
      North America
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