Evolution and Vaccine Strain Match of <i>HA</i> and <i>NA</i> Genes of Influenza A/H3N2 Subtype in Riyadh, Saudi Arabia, 2020-2023.

ABSTRACT: Background/Objectives: Although several studies have shed light on the epidemiology of the influenza A/H3N2 subtype in Saudi Arabia, the knowledge regarding the molecular epidemiology and genetic diversity of the A/H3N2 subtype in the Riyadh region is still significantly restricted. Thus, the current research intends to investigate the molecular epidemiology and circulation patterns of the influenza A/H3N2 subtype in Riyadh, Saudi Arabia, over the past 9 years. Methods: A total of 380 nasopharyngeal aspirate samples (NPAs) (winter seasons 2020-2023) were screened for the presence of A/H3N2 subtype. Results: Sixty-five samples (17.11%) were found to be positive for the influenza A virus (IAV). A/H3N2 subtype 35 (9.21%) slightly predominated over A/H1N1 pdm09 30 (7.89%),

SUBMITTER: Alkubaisi NA 

PROVIDER: S-EPMC12737434 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature