Canada's Ontario to offer second COVID booster dose to all adults

Ontario, Canada's most populous province, said on Wednesday that it would offer a second COVID-19 vaccine booster dose to everyone aged 18 and older from Thursday. 'As we continue to manage COVID-19 for the long term, we're expanding second booster doses and extending the availability of free rapid antigen tests to give people the tools they need to stay safe and to ensure Ontario stays open,' Ontario's Health Minister Sylvia Jones said in a statement.