WENDELL ROELF SOUTH Africa is being hit by a fourth wave of COVID-19 infections driven by the Omicron variant which has been detected in seven of the country's nine provinces, Health Minister Joe Phaahla said has revealed. Omicron, which has raised global fears of a surge in infections, was first detected in southern Africa last month and has prompted governments across continents to impose travel curbs and take other measures to contain it. Phaahla told a media briefing that he hoped that the variant could be managed without causing too many deaths. He urged South Africans to get fully vaccinated,…