A fourth COVID-19 vaccine dose is now available to Australia's elderly and vulnerable, who had a booster at least four months ago. Older Australians are urged to get the additional protection before winter sets in, with a surge in cases likely.
A fourth COVID-19 vaccine dose is now available to Australia's elderly and vulnerable, who had a booster at least four months ago. Older Australians are urged to get the additional protection before winter sets in, with a surge in cases likely.
