MORE than two-thirds of Africans have been infected by COVID-19 since the pandemic started, 97 times more than reported confirmed cases, according to a World Health Organization (WHO) study published on Thursday. The study found that by September 2021, 800 million Africans had been exposed to SARS-CoV-2, the virus that causes COVID-19, compared with 8.2 million cases reported at that time. The WHO said that under-counting was happening everywhere, but to a lesser degree than in Africa. It said that on average globally, true infections were 16 times higher than confirmed cases. The agency's regional director for Africa, Dr Matshidiso…