ZIMBABWE has authorised the emergency use of Johnson & Johnson's COVID-19 vaccine, the first Western-made shot to be approved by the southern African nation, its medicines regulator said has announced. Like many African countries, Zimbabwe is in the grips of a third wave of infections, with nearly half of its 101,711 cumulative cases and 3,280 deaths recorded this month alone, according to official data. Until now, the Medicines Control Authority of Zimbabwe (MCAZ) had only registered vaccines from India, Russia and China. "MCAZ reviewed the technical documentation that was submitted by the manufacturer, and emergency use authorisation was granted and…