Experts say the new formula is designed to more closely match the flu strains that are circulating across the world.
Listen to SBS Indonesian every Monday, Wednesday, Friday, and Sunday at 3 pm.

A flu vaccine being administered (AAP). Source: EPA / CAROLINE BREHMAN/EPA
Experts say the new formula is designed to more closely match the flu strains that are circulating across the world.
Listen to SBS Indonesian every Monday, Wednesday, Friday, and Sunday at 3 pm.