Influenza A(H3N2) Predominant Strain During 2021 to 2022 Season | Live Well

MONDAY, July 25, 2022 (HealthDay News) — Through the 2021 to 2022 influenza season, the predominant virus was influenza A(H3N2), in accordance to investigation posted in the July 22 problem of the U.S. Centers for Disease Handle and Prevention Morbidity and Mortality Weekly Report.

Angiezel Merced-Morales, M.P.H., from the CDC in Atlanta, and colleagues summarized influenza activity in the course of the period of Oct. 3, 2021, to June 11, 2022, in the United States.

Applying medical diagnostic checks for influenza virus, medical laboratories tested 2,850,954 respiratory specimens. The researchers located that 4.5 % of these specimens analyzed good: 98.6 and 1.4 per cent for influenza A and B, respectively. Each 7 days, the proportion of specimens tests positive varied from .1 to 9.9 per cent. Public health laboratories examined 877,928 specimens, of which 2.8 per cent analyzed favourable: 99.5 and .5 % for influenza A and B, respectively. General, 19,127 seasonal influenza A viruses have been subtyped: .1 and 99.9 percent had been influenza A(H1N1)pdm09 viruses and influenza A(H3N2) viruses, respectively. Influenza B lineage facts was out there for 41 influenza B viruses: 97.6 and 2.4 per cent were being B/Victoria lineage viruses and B/Yamagata lineage viruses, respectively. Two distinct waves were being witnessed in influenza action: a initially wave that peaked in mid-December 2021 and a second wave with peaks ranging from mid-March to May possibly 2022.

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“Irrespective of reducing influenza exercise in current months, maintaining vigilance for influenza virus infections throughout the summer season is important,” the authors create.