SYDNEY (Reuters) -- Australia will roll out a fourth dose of COVID-19 vaccines to its most vulnerable population starting next month, authorities said on Friday, as the country looks to limit fresh outbreaks ahead of winter.
The decision comes amid a steady rise in cases fueled by the highly contagious BA.2 sub-variant of the omicron strain and concerns of co-circulation of COVID-19 and flu viruses during colder months as most social distancing restrictions end.
