While it appears that Omicron has a "very large" advantage over previous strains, it doesn't appear to be making people sicker, and Pfizer says a booster shot "neutralized" it in the lab.
While it appears that Omicron has a "very large" advantage over previous strains, it doesn't appear to be making people sicker, and Pfizer says a booster shot "neutralized" it in the lab.