Article

Haemagglutinin 162–164 deletions enhance influenza B/Victoria virus fitness and virulence in vivo

2026-01-09

Abstract excerpt

Influenza B viruses cause substantial respiratory disease and seasonal outbreaks. Despite decades of circulation in humans, only the B/Victoria lineage persisted after the COVID-19 pandemic. Continual evolution has generated hemagglutinin deletion variants at residues 162–164 that drive successive epidemics, yet their functional consequences remain poorly understood. Using integrated phylodynamics and reverse gene...

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Literature Corpus work: 26c918d9-3b39-5d03-b123-2076bd770bcd
DOI: 10.64898/2026.01.08.698527

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