Accelerated Subtyping of Influenza A in Hospitalized Patients
3 days ago · In the United States, there have been outbreaks with these viruses among poultry and dairy cows, as well as infections among other animals. Since 2022, 67 total human cases of avian influenza A(H5) virus infection have been identified in the United States, with 66 of these cases occurring in 2024.
Avian Influenza Type A | Bird Flu | CDC
Dec 20, 2024 · The most frequently identified subtypes of avian influenza A viruses that have caused human infections are H5, H7 and H9 viruses. Specifically, A(H5N1) and A(H7N9) viruses have caused the majority of avian influenza A virus infections reported in people, with HPAI A(H5N6) and LPAI A(H9N2) viruses also causing human infections in recent years.
Influenza A virus subtype H5N1 - Wikipedia
Influenza A virus subtype H5N1 (A/H5N1) is a subtype of the influenza A virus, which causes the disease avian influenza (often referred to as "bird flu"). It is enzootic (maintained in the population) in many bird populations, and also panzootic (affecting animals of many species over a …
Technical Report: June 2024 Highly Pathogenic Avian Influenza A(H5N1 …
In the United States, from May 2022 through June 4, 2024, USDA APHIS reported HPAI A(H5N1) virus detections in wild mammals comprising a wide range of different species in 31 states. Experimental studies have used the ferret model to assess transmissibility and disease severity of HPAI A(H5N1) clade 2.3.4.4b viruses.
Highly Pathogenic Avian Influenza A(H5N1) Virus Infections in …
Dec 31, 2024 · Highly pathogenic avian influenza A (H5N1) viruses have caused widespread infections in dairy cows and poultry in the United States, with sporadic human cases. We describe characteristics...
United States, there have been outbreaks with these viruses among poultry and dairy cows, as well as . infections among other animalsand humans. Since 2024, 67 total human cases of avian influenza A(H5) virus infection have been identified in the United States. Key Points or Updates:
Genotypic clustering of H5N1 avian Influenza viruses in North …
Here, we performed ordination and clustering analyses on sequence data from H5N1 viruses identified in North America between January 2020 to December 2023 to visualize virus genotypic diversity in poultry and wildlife populations.
Early Release - Comparison of Contemporary and Historic Highly ...
Dec 30, 2024 · Clade 2.3.4.4b highly pathogenic avian influenza (HPAI) A(H5N1) viruses have circulated in avian species in North America since 2021. Subsequently, those viruses have been detected in a wide range of mammal species ().In 2024, clade 2.3.4.4b HPAI H5N1 virus was detected in dairy cattle, in both tissue samples and milk from infected animals (), and then spread to multiple herds in 16 US states ...
CDC urges doctors to speed subtyping of patients hospitalized
3 days ago · Its alert to doctors and hospitals follows a few rare but mysterious bird flu cases in the US – including, most recently, a child in San Francisco confirmed to have had H5N1 influenza – that ...
Highly Pathogenic Avian Influenza A(H5N1) Virus Clade 2.3.4.4b ...
We describe the pathology of natural infection with highly pathogenic avian influenza A (H5N1) virus of Eurasian lineage Goose/Guangdong clade 2.3.4.4b in 67 wild terrestrial mammals throughout the United States during April 1‒July 21, 2022.