The delta variant first identified in India is spreading widely in the United States, accounting for the majority of new COVID-19 infections. But even as it becomes the dominant strain here, a new ...

The delta variant is by far the dominant strain of the coronavirus in North Carolina and the rest of the country, but experts say there are also other variants to watch. Before delta, there was alpha, ...

The delta variant is fueling the COVID-19 surge in the United States, but experts warn that a more dangerous variant could emerge if more Americans don't get vaccinated. Delta is the most recent of ...

TOKYO -- Following the two-week lag between the confirmation of Japan's first case of the lambda coronavirus variant and its announcement, the health ministry is reviewing its disclosure standards, ...

The central government will soon start releasing information about cases of the Lambda variant of the novel coronavirus that have been identified in Japan. Officials currently make public the number ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DALLAS — Although delta remains the most ...

(Reuters) - The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19. Delta breakthrough infections likely ...

The opening ceremony for the Tokyo Olympic Games takes place at the Japan National Stadium on July 23, 2021, the same day that the first case of the lambda coronavirus variant was confirmed in Japan. ...