South Africa launched its Covid inoculation drive on Wednesday using Johnson & Johnson vaccines, after a delayed start caused by concerns about the ability of the Oxford-AstraZeneca formula to shield against a widespread variant of the virus. A nurse was the first to be immunised at a hospital in Khayelitsha township in Cape Town, just hours after the first batch of 80,000 doses landed in the country late Tuesday, an AFP reporter saw. str-sn/ri