"At the moment, virtually everything points toward it being a milder disease," Willem Hanekom, director of the Africa Health Research Institute, said, citing the national institute's figures and other reports. "It's early days, and we need to get the final data. Often hospitalizations and deaths happen later, and we are only two weeks into this wave." In the meantime, scientists around the world are watching case counts and hospitalization rates, while testing to see how well current vaccines and treatments hold up. While delta is still the dominant coronavirus strain worldwide, omicron cases are popping up in dozens of countries, with South Africa the epicenter.