More than two dozen states have reduced how frequently they report what's happening with the pandemic, raising alarm among some public health experts.

President Biden pledged the U.S. will donate 500 million doses of the Pfizer vaccine globally. "Our values call on us to do everything that we can to vaccinate the world against COVID-19," he said.

The variant accounts for more than 6% of all infections in the U.S. and in some Western states is responsible for more than 18% of cases.

Health experts worry about the delta variant because it appears more transmissible, which means it could lead to more deaths among the unvaccinated. Georgia, with roughly 35% of vaccinated adults, has more unvaccinated people than almost anywhere in the country.  

All of the states with the highest adult vaccination rates went to President Biden in the 2020 election. But the vaccine divide is not just about politics.

Officials have pleaded with tech giants to keep the documents off their sites, but Amazon briefly had blank vaccination cards for sale this week. They could land their bearers in prison.

Instead of putting genetic instructions into people whose cells then make a viral protein, the vaccines from Novavax, Medicago and Sanofi carry a spike protein payload.

Health workers must overcome great challenges to battle one of the world's most severe COVID-19 outbreaks, which stretch from villages without hospitals to the top of the world's highest mountain.

The country had been seen as a success in handling the pandemic, but a recent surge in cases has made it the third-worst affected country in Southeast Asia. Vietnam is also seeing a rise in cases.

The United States wasn't ready for the pandemic "and we have a lot of work to do to get better prepared for the next one," says Dr. Anne Schuchat, who is retiring after 33 years at the agency.

Thousands of pages of Dr. Fauci's emails have been released to reporters. Here's what they tell us about his life and manner during the early months of the pandemic.

The NBA playoffs are in full swing — and some of the excitement has spilled over into ugly fan incidents directed at players. Several fans have been ejected and, in some cases, arrested.

Parts of rural Georgia are seeing low rates of vaccination against COVID-19, which could be a problem for the state going forward, according to the Centers for Disease Control and Prevention.

Several states — including Ohio, California, Colorado and Maryland — have created vaccination incentive programs to get more teens and adults fully immunized against the coronavirus.

Innovative teaching strategies could very well become a cornerstone of curriculum going forward, especially in regaining ground that has been lost.