What do the data so far tell us about Omicron and whether it causes milder disease than previous Covid-19 variants? What can we expect to see as Omicron infections crash up against the country’s health care system? Why do Omicron waves seem to decline so quickly after scaling such heights?
We don’t know. So we asked Trevor Bedford, a computational biologist at the Fred Hutchinson Cancer Research Center in Seattle, for his thoughts.