Daily infections are nearly quadruple the numbers reported just a week ago. Japan's prime minister, who has denied the Olympics are to blame, has extended a state of emergency to the end of August.

In an outbreak in Provincetown, Mass., three-quarters of cases occurred in fully vaccinated people. The study's findings suggest that vaccinated people infected with delta can transmit the virus.

The number of hospitalized COVID-19 patients has doubled over the past month, and experts estimate that the current fifth wave of infections still has a week or two to go before reaching its peak.

September was expected to be the month of mass returns to the office. Now the surging extra-contagious coronavirus variant has employers wondering what to do.

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In an effort to get more Black people to get vaccinated, Stephen Thomas — who runs the Maryland Center for Health Equity at the University of Maryland — teamed up with barbershops and salons in the area.

China is battling to stem the spread of new cases tied to the more infectious variant. Nearly 200 people have been infected since last week, when a case was detected at an international airport.

About 300 unarmed soldiers are joining local police in the city of 6 million to enforce coronavirus restrictions as authorities try to quell a new outbreak linked to the delta variant.

President Biden has called on states and localities to offer $100 to people who get vaccinated. Many states have already offered cash incentives, with varying results.

After an early summer lull, Oklahoma is facing yet another wave of the coronavirus.

The CDC information dated Thursday gives new details on this variant of the coronavirus and says the agency should "acknowledge that the war has changed." It was first reported by The Washington Post.

Daily coronavirus cases in Tokyo have set records for three days straight, but Japan's prime minister denies that the Olympic Games are causing the spike.