Virus

British scientists from King’s College have warned of changes in the symptoms of COVID-19. Scientists warn that due to the mutations that have appeared, the coronavirus is now difficult to distinguish from the common cold. The National Health Service of Great Britain left in the list of the main signs...

A new device can sniff out if someone in a crowded room has COVID-19, British researchers say. The highly accurate ceiling-mounted sensor takes as few as 15 minutes to raise a coronavirus alarm, says development firm RoboScientific. The room monitor, a little larger than a smoke detector, notices changes in...

A new CBS News poll finds that 29% of adults surveyed will not get vaccinated or are still deciding. Concern is now looming about the Delta variant of COVID-19 becoming the dominant strain of the virus in the U.S. Lilia Luciano has the latest.

A standard device in detective stories is a map on which certain buildings are circled. Their locations are thought to be revealing, though often they just create a false trail. When four of the first cases of a strange, pneumonia-like illness seen in Wuhan, China, in December, 2019, were found to have a connection to the Huanan Seafood Wholesale Market, it seemed a key to solving the mystery of the illness’s origin. Live animals were reportedly on sale there, offering a route for pathogens to jump from wild species to humans. But then other cases, some of them earlier, were identified, with no known connection to the market. In due course, more sites were circled on the pandemic map. One was the Wuhan Institute of Virology, which contains a Biosafety Level 4 lab. The institute’s work included experiments on the bat coronaviruses that are among the closest known relatives to SARS-CoV-2, which causes COVID-19.

In a shocking revelation, Chinese researchers claim to have found a batch of new coronaviruses in bats. They even say that the newly found viruses in the bats include one that may be the second-closest yet (genetically) to the COVID-19 virus, reports CNN. According to the researchers, their discoveries in...

As coronavirus testing continues to decline in the United States, public health experts are warning that the trend will make it more difficult for the country to identify outbreaks and track the spread of highly contagious variants. Daily coronavirus tests in the United States peaked in mid-January at about 1.8...

One question many people who are fully vaccinated for COVID-19 have is whether they can transmit the virus to someone who isn’t vaccinated. For this to happen, it would mean the fully vaccinated person was asymptomatic. That term means being infected with the virus without ever knowing it. While the...

Single-cell analysis of autopsy samples from COVID-19 patients shows how the lungs repeatedly tried, and failed, to repair themselves. Scientists from several hospitals and research centers have shown what happens in individual cells of patients who died of COVID-19. In a study published in Nature, the researchers describe how infected cells from multiple organs exhibited a range of molecular and genomic changes. They also saw signs of multiple, unsuccessful attempts by the lungs to repair themselves in response to respiratory failure, which is the leading cause of death in COVID-19 patients.

Scientists have discovered a type of microbe that may be linked to a severe form of COVID-19. A new study shows that the coronavirus can survive on surfaces near sick patients, but is unlikely to infect anyone through these surfaces. The findings add to previous research showing that the coronavirus typically spreads through the air, rather than through touch. The researchers also found a new link between the coronavirus and a type of microbe that may be associated with a severe form of COVID.