BERLIN (AP) — The COVID-19 pandemic is “most certainly not over,” the head of the World Health Organization warned Sunday, despite a decline in reported cases since the peak of the omicron wave. He told governments that “we lower our guard at our peril.”

North Korea officially confirmed its first COVID-19 outbreak on Thursday and ordered a national lock down, with state media reporting a sub-variant of the highly transmissible Omicron virus had been detected in the city of Pyongyang.

People who have had COVID-19 tend to report having more nightmares than people who have not been infected by the virus, according to research published in Nature and Science of Sleep. ...

There is a new push from the White House to get Paxlovid, a drug which reduces the risk of COVID hospitalization by 90%, into the hands of more Americans. The rollout of the medication has been slow since it was authorized for use in December, failing to reach many Americans eligible for treatment.

British researchers believe they have documented the longest-known Covid-19 infection, in a patient who tested positive for a total of 505 days before their death. The previous record for persistent infection -- rather than repeated bouts of Covid -- is thought to be 335 days, the team from King's College London and Guy's and St Thomas' NHS Foundation Trust said.

Weibo users have been tagging posts with "buying groceries in Shanghai" to voice their frustration about securing groceries during the lockdown.

The agency granted emergency use authorization for the test, which detects chemical compounds in breath samples. A positive result should be confirmed with a molecular test.

The findings add further weight to the idea of mix-and-match boosting.

A new protein subunit vaccine developed at MIT and Beth Israel Deaconess Medical Center may offer an inexpensive, easy-to-store, and effective alternative to RNA vaccines for Covid-19.

Fortunately, the Covid pandemic and its effects are powering down these days. There are fewer Covid positive reports and an increasing number of survivors.

A study found that serious COVID-19 illness is linked to an increase in the risk of long-term adverse mental health implications, such as depression and anxiety.

Novak Djokovic withdrew Wednesday from the BNP Paribas Open on the eve of the event, saying he cannot travel to the United States because he is not vaccinated against COVID-19. Djokovic, the tournament’s No. 2 seed, cited regulations by the U.S. Centers for Disease Control and Prevention as the reason for his inability to play. The U.S. has been requiring foreign visitors to be vaccinated to enter the country.

Infection by SARS-CoV-2 causes a dizzying array of symptoms beyond the respiratory distress that is its most notable feature. These range from intestinal distress to blood clots to the loss of smell, and symptoms vary wildly from person to person.

Scientists have pinpointed 16 new genetic differences in people who developed severe COVID-19 in a large study that could help researchers develop treatments for very sick patients.

Genomic surveillance of SARS-CoV-2 is helping us spot new variants and figure out how to respond. What else could it help us do?

Two doses of a new COVID vaccine that is based on a conventional approach has achieved stunning success.

Two years into the COVID-19 pandemic, researchers wanted to know how well human beings are holding up against an onslaught of new variants. But, to figure out if our immune systems are up to the task would require a mathematical feat. So researchers turned to sophisticated computer models to find the answer.

I enjoyed talking to Professor Devi Sridhar about how we end this pandemic and prevent the next one.

Amazon workers who catch COVID-19 and are not fully vaccinated against the virus will not be eligible for paid leave after March 18, according to a staff memo shared with Insider by Amazon. Thursday's memo also told workers they will no longer have to wear masks inside warehouses from Friday if they have been fully vaccinated and local regulations allow.

Claire Bridges, an aspiring model from Florida, had both legs amputated after she developed a life-threatening complication as a result of COVID.