At least 25 million Kenyans need to gain immunity against the coronavirus to stop the disease from spreading and return to the pre-Covid-19 normalcy. Scientists estimate that for Covid-19, at least 50 per cent to 70 per cent of people would need to achieve immunity to stop transmission. "An effective vaccine presents the safest way to reach herd immunity," says the study, titled 'Covid-19 herd immunity: where are we?' “The momentum behind our effort to ensure global, equitable access to Covid-19 vaccines is really building," Gavi CEO Seth Berkley said. "No country, rich or poor, should be left at the back of the queue when it comes to Covid-19 vaccines; this collaboration brings us another step closer to achieving this goal.”Edited by R.Wamochie

Source: The Star September 30, 2020 20:03 UTC