Virus

Unvaccinated people who have had Covid-19 may be more than twice as likely to get infected again than those who tested positive and bolstered their natural immunity with a vaccine, according to a small study that assessed the likelihood of…

A pile of early coronavirus data that was missing for a year has emerged from its hiding place.In June, an American scientist discovered that more than 200 genetic sequences from Covid-19 patient samples isolated in China at the beginning…

The agency heightened concerns about the spread of the virus in its report on Friday and even urged jurisdictions with undetectable levels of the virus to take precautionary measures. But the CDC's internal document sounded much more…

As coronavirus cases resurface across the country, many vaccine Americans are losing patience with vaccine holdouts who they believe neglect a civic duty or cling to conspiracy theories and misinformation, even as new patients arrive in…

He didn't respond, but days later Apple posted an internal video showing company executives focusing on getting employees back to the office. In the video, Dr. However, Sumbul Desai, who heads Apple's digital health division, did not say…

WASHINGTON — President Biden unleashed his growing frustration with social media on Friday, saying that platforms like Facebook were “killing people” by allowing disinformation about the coronavirus vaccine to spread online.Mr. Biden’s…

Kang Seung Hyun, a teacher and former rugby player preparing for a fitness photo shoot, said his gym decided to turn off the treadmills instead of imposing the slow pace. However, the bikes remained open for reasons he did not…

KJ Seung, the director of strategy and policy for Partners in Health's response to Covid in Massachusetts, who helped set up the contact tracing system, said it had been difficult for contact tracing authorities to clearly demonstrate that…

At the height of the pandemic, it was easy to worry that strangers would transmit the virus to you. But a new study of what happens after people's birthdays suggests that people we trust were also a common source of virus spreading.Private…

Sarah Cavey, a real estate agent in Denver, was thrilled last fall when Colorado introduced an app to warn people of possible coronavirus exposures.Based on software from Apple and Google, the state’s smartphone app uses Bluetooth signals…