Deblina Chakraborty

To safely keep schools open in the fall, the CDC has recommended what it calls a “layered mitigation strategy,” including the use of indoor masks for unvaccinated students and teachers. What happens if schools reopen but don’t enforce these procedures? Dr. Wen weighs in.

Pfizer and BioNTech announced Tuesday that they’re beginning a clinical trial for an Omicron-specific Covid-19 vaccine, and Moderna revealed Wednesday that it has entered Phase 2 of its own trial of a vaccine that targets the variant, which is by far the dominant one in the United States right now.

A subvariant of Omicron, BA.2, is leading to a new wave of Covid-19 infections across Europe. How worried should people be about the new cornavirus variant? Will vaccines protect against it? Could BA.2 cause another surge in the US? CNN Medical Analyst Dr. Leana Wen weighs in.

“The Help” director Tate Taylor has been quietly turning Natchez in the Mississippi Delta into a film hub, while also adding to the local community.

Covid-19 cases are rising again, driven by Omicron subvariant BA.5. Federal health officials urge Americans to get vaccine boosters if they are due, but if new boosters are developed for the fall, should people wait? CNN Medical Analyst Dr. Lean Wen explains.

An August report from the US Centers for Disease Control and Prevention said that “even a single case of paralytic polio represents a public health emergency in the United States.” CNN Medical Analyst Dr. Leana Wen explains why.