If you imagine viruses as pieces of a jigsaw puzzle, that can help explain what happens when a coronavirus variant comes into contact with human cells.
Less than three weeks after launching quarantine-free travel between the two countries, New Zealand is suspending flights from Australia after new cases were found there.
Dr. Sumit Ray, critical care chief at a New Delhi hospital, is on the front lines of India's growing COVID-19 crisis. "As a system in different parts of the country, we have collapsed," he says.
The Georgia Department of Education is asking the public to weigh in with suggestions for spending money from the latest $3.8 billion installment of federal COVID-19 relief assistance.
The pandemic has done a number on us, in too many ways to count. Our bodies are responding with feelings of fatigue and lack of focus, experts say. Here are some tips to help you feel better.
Fifteen Oregon counties are designated "extreme risk" for COVID-19 due to high infection rates. Linn County's public health office is working to convince residents to get their shots.
Hospitals don't have enough oxygen for patients on ventilators. There are delivery bottlenecks. Families are sometimes told to get their own supplies. Health experts say it didn't have to be this way.
Climbers are reporting an outbreak at Everest Base Camp in Nepal, where hundreds of climbers assemble as they prepare for summiting the world's tallest peak.
Surgeon General Vivek Murthy says that while confidence in COVID-19 vaccines has risen, there's more work to do in convincing people, especially in rural communities, to get the shots.
Foreign Minister Subrahmanyam Jaishankar and his entourage at the gathering in the United Kingdom will attend meetings virtually after two members of the delegation reportedly tested positive.
As of the end of April, only 254 deaths were attributed to COVID-19 in Haiti over the course of the entire pandemic. Why has the death rate been so low?
