infectivity

Kolkata: The number of active Covid cases in Bengal surged to 1,379 on Monday from 1,301 a day ago. But health experts felt testing was not…

The world is filled with tiny creatures that find us delicious. Bacteria and viruses are the obvious bad guys, drivers of deadly global pandemics and annoying infections. But the pathogens…

Scientists believe bats first transmitted SARS-CoV-2 to humans in December 2019, and while the virus has since evolved into several variants such as delta and omicron, a new study indicates…

First announced by the World Health Organization on Nov. 26, 2021, the SARS-CoV-2 omicron variant spread rapidly around the world, becoming the dominant variant in the U.S. and elsewhere.…

Ventilation, though still worthwhile, is likely to have a lesser impact. "People have been focused on poorly ventilated spaces and thinking about…

PTI New Delhi, January 13High temperature and drying can eliminate viruses, including the coronavirus,…

Scientists at the National Institutes of Health have found that a process in cells may limit infectivity of SARS-CoV-2, and that mutations in the alpha and delta variants overcome this…

Viruses accumulate mutations as they replicate in infected cells. Repeated replication can lead to viral strains that show attenuated virulence. Such strains may act as vaccines if the…

Combining structural biology and computation, a Duke-led team of researchers has identified how multiple mutations on the SARS-CoV-2 spike protein independently create variants that are more…