South Africa, in contrast, is sequencing 0.8 percent of its virus samples and ranks 37th worldwide. About 35 percent of its population is vaccinated, according to the country’s Department of Health. (Other trackers have lower numbers.) No other country in Africa has surpassed the threshold of sequencing 5,000 samples. Kenya, however, is close to doing so and is one of several African countries with an overall higher percentage of sequencing than South Africa.