Australia’s technical advisory group on immunisations (ATAGI) has approved a fourth “winter booster” dose of COVID-19 vaccine for vulnerable and older Australians in a bid to increase “vaccine protection.” Following the footsteps of countries including Italy, Chile, and Canada, ATAGI recommended the fourth jab to Australians over 65, Indigenous Australians over 50, those in disability care, and those who are immunocompromised over 16. This comes after the third booster was approved on Feb. 2 and mandated for aged care workers, on Feb. 15, and disability workers, on March 16. “The additional winter booster dose can be given from four months or longer after the person has received their first booster dose, or from four months after a confirmed SARS-CoV-2 infection, if infection occurred since the person’s first COVID-19 booster dose,” the ATAGI advice reads. “Comirnaty (Pfizer) or Spikevax (Moderna) are the preferred vaccines for COVID-19 booster doses including the additional …