Return to trivalent flu shots ‘likely’ as previously widespread strain disappears
Professor Allen Cheng expects trivalent shots to make a comeback in 2025.
Australia could switch back to trivalent influenza vaccines by next year after infectious diseases experts deemed the inclusion of one of the four strains in seasonal flu shots “no longer warranted”.
Last year, a WHO expert committee advised against including the B/Yamagata lineage component in flu vaccines because of the absence of confirmed cases since March 2020.
