Prevalence of antibodies against seasonal influenza A and B viruses among older adults in rural Thailand: A cross-sectional study.

ABSTRACT: Assessing the seroprevalence of the high-risk individuals against the influenza virus is essential to evaluate the progress of vaccine implementation programs and establish influenza virus interventions. Herein, we identified the pre-existing cross-protection of the circulating seasonal influenza viruses among the older-aged population. A cross-sectional study was performed base on the 176 residual sera samples collected from older adults aged 60 to 95 years without a history of vaccination in rural Thailand in 2015. Sera antibody titers against influenza A and B viruses circulating between 2016 and 2019 were determined by hemagglutination inhibition assay. These findings indicated the low titers of pre-existing antibodies to circulating influenza subtypes and showed age-independent antibo

SUBMITTER: Suntronwong N 

PROVIDER: S-EPMC8404998 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature