JOHANNESBURG, South Africa (AFP) — The World Health Organization on Thursday urged African countries to improve their capacity to vaccinate populations against Covid-19, warning the continent was still “far from ready” for mass immunization. With three coronavirus vaccines now showing efficacy rates of 70 percent or more, the UN body called on Africa to “ramp up” preparations for “the continent’s largest ever immunization drive”. The African region is so far only 33 percent ready to […]