What are the symptoms of Omicron? How they differ between patients

The highly-contagious Omicron variant now accounts for most new cases in the United States. And with a surge in Covid-19 cases and intense demand for scarce at-home rapid tests — which don’t differentiate between variants — people experiencing Covid-like symptoms are scrambling to figure out whether they’ve contracted Omicron, a previous variant, or just a seasonal cold. Judith O’Donnell, the chief of infectious disease at Penn Presbyterian Medical Center in Philadelphia, spoke to us about the latest surge and how Omicron symptoms differ among vaccinated and unvaccinated patients. What are the…

Read More