As the Delta variant sweeps the globe, scientists are learning more about why new versions of the coronavirus spread faster, and what this could mean for vaccine efforts. The spike protein ...

A certain mutation in the COVID-19 Delta variant causes infected cells to form disruptive chunks in the lungs and leads to more serious symptoms of the disease, a research team said. If the cells ...

The Omicron variant of the coronavirus is suspected to be the most infectious yet by binding to human receptors better than the Delta variant and the team’s findings show it may have the potential to ...

Cases and hospitalizations related to the Omicron variant may be falling in the United States, but it is a different story in South Korea. COVID-19 infections there remained above 50,000..

And because the delta variant, first identified in India ... spike protein will pop up somewhere around the world and cause problems even among vaccinated people, though that remains to be ...

The problem is, it's very variable ... Or you might have got it early on, before the Delta variant existed. And you may not have protection against that variant. What we do know with the vaccines ...

Researchers in Japan are calling for new vaccines to be developed to protect the public from breakthrough variants of the novel coronavirus, such as the highly contagious Delta strain that comes ...

Four in 10 Minnesotans who contracted COVID-19 reported in a new state survey that they struggled with lingering health problems such ... which accounted for 45% of variants circulating nationally ...

Delta variant: First identified in late 2020 ... Fatigue: Excessive tiredness remains a hallmark symptom. Gastrointestinal problems: Nausea, stomach discomfort and diarrhea can occur in some ...