Schools are opening up around the country, and the third year in the shadow of a pandemic brings new challenges but also new hope.

Some scientists are alarmed that the agency plans to evaluate the next generation of boosters by reviewing mouse studies alone. Others say there's no time to waste waiting for human trials.

The proposed changes at the Centers for Disease Control and Prevention come amid ongoing criticism of the agency's response to COVID-19, monkeypox and other public health threats.

The first lady will remain at a private residence in South Carolina and isolate from others for at least five days per CDC guidance.

In the U.S., officials have asked vaccine makers to target BA.5, rather than the original omicron strain. That has delayed the boosters' development — but officials hope they will be more effective.

Requirements to test and mask and be vaccinated are becoming less common as colleges shift away from treating COVID-19 as an emergency.

Students who are exposed to COVID-19 no longer need to quarantine or get repeatedly tested to stay in class. But masks are still recommended for nearly half the country.

It's year three of the COVID-19 pandemic, so precautions in schools look familiar.

Wastewater testing has proved a reliable early alarm bell for COVID-19 outbreaks. U.S. researchers are now adapting the approach to track the explosive spread of monkeypox, and maybe other viruses.

Hong Kong's COVID lockdown measures have devastated the city's tourism industry and disrupted business travel in a city known for being an international financial center and a business hub.

The president arrived in Rehoboth Beach, Del., where the first family has a home.

An estimated 4 million workers in the U.S. are struggling to work due to debilitating symptoms from long COVID. The government is urging employers to provide accommodations to keep them on the job.