SYDNEY, Australia (AFP) — Australia on Wednesday authorized booster shots of Covid-19 vaccines for over-18s, with the third dose expected to be offered to the entire population from next month. The Therapeutic Goods Administration regulatory authority said it had granted provisional approval for one dose of the Pfizer-BioNTech vaccine to be given as a booster shot to adults. “The provisional approval means that individuals aged 18 years and older may receive a booster (third dose), […]