SYDNEY, Australia (AFP) — Australia is offering a fourth dose of Covid-19 vaccines to over 65s from next month, federal health authorities announced Friday, as a new Omicron strain races through the population. The top advisory group on vaccines approved the fourth shot for vulnerable groups: those aged over 65, indigenous people over 50, people who are immunocompromised and care home residents. In the past six weeks, other countries, including France, Germany and Sweden […]