US experts question whether counting Covid cases is still the right approach
Case counts “are causing a lot of panic and fear, but they don’t reflect what they used to, which was that hospitalizations would track with cases”, said Dr Monica Gandhi, an infectious disease specialist and professor of medicine at University of California, San Francisco.
However, other infectious disease experts say that while they are encouraged by data from South Africa showing that its recent Omicron wave was not accompanied by a significant increase in deaths, the virus continues to strain hospitals in the US, therefore the number of Covid cases remains a vital measurement.
The US on Thursday had more than 580,000 new Covid cases, the second time this week that the country has broken its record for daily Covid cases, according to New York Times data. But over the past two weeks, while the number of Covid cases in the United States has increased by 181%, the number of hospitalizations has increased by 19% and the number of deaths has decreased by 5%.
“It seems to be less virulent for two reasons,” said Gandhi. “One, we seem to have so much more immunity in December 2021” than during previous waves, and “there are now five laboratory studies that show that it doesn’t seem to infect lungs very well”.
In reporting data on Covid, health departments should now take the same approach as they do with influenza, Gandhi said. That means releasing hospitalization and death data but not numbers concerning case counts because, like with the flu, it’s not possible to eliminate the virus, therefore we should only focus on its severity, she said.
