Atagi considers the fourth dose of Covid vaccine, as Omicron subvariants cause an increase in cases
The Australian Vaccine Expert Advisory Group meets to discuss the fourth booster doses of Covid-19, as Omicron subvariants cause an increase in infections, leading some prime ministers to urge people to wear masks more widely. Omicron’s BA.4 and BA.5 strains are becoming the dominant Covid-19 strains in Australia, surpassing the BA.2 strain. A preliminary analysis …