COVID-19 pandemic interventions reshaped the global dispersal of seasonal influenza viruses.

ABSTRACT: The global dynamics of seasonal influenza viruses inform the design of surveillance, intervention, and vaccination strategies. The COVID-19 pandemic provided a singular opportunity to evaluate how influenza circulation worldwide was perturbed by human behavioral changes. We combine molecular, epidemiological, and international travel data and find that the pandemic's onset led to a shift in the intensity and structure of international influenza lineage movement. During the pandemic, South Asia played an important role as a phylogenetic trunk location of influenza A viruses, whereas West Asia maintained the circulation of influenza B/Victoria. We explore drivers of influenza lineage dynamics across the pandemic period and reasons for the possible extinction of the B/Yamagata lineage. After

SUBMITTER: Chen Z 

PROVIDER: S-EPMC11760156 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature