The New York Times reports:

The Covid-19 virus is spreading faster than ever in South Africa, the country’s president said Monday, an indication of how the new Omicron variant is driving the pandemic, but there are early indications that Omicron may cause less serious illness than other forms of the virus.

Researchers at a major hospital complex in Pretoria reported that their patients with the coronavirus are much less sick than those they have treated before, and that other hospitals are seeing the same trends. In fact, they said, most of their infected patients were admitted for other reasons and have no Covid symptoms.

But scientists cautioned against placing too much stock in either the potential good news of less severity, or bad news like early evidence that prior coronavirus infection offers little immunity to Omicron. The variant was discovered just last month, and more study is needed before experts can say much about it with confidence. Beyond that, the true impact of the coronavirus is not always felt immediately, with hospitalizations and deaths often lagging considerably behind initial outbreaks.

Dr. Emily S. Gurley, an epidemiologist at Johns Hopkins Bloomberg School of Public Health, said of the signs that the variant is less severe, “It would not be shocking if that’s true, but I’m not sure we can conclude that yet.” [Continue reading…]