
A protein in the lungs that blocks Covid and forms a natural barrier to the virus has been discovered by scientists at the University of Sydney.
The naturally occurring protein, LRRC15, works by attaching itself to the virus like Velcro, preventing the Covid particles from binding with more vulnerable cells - as well as reducing the chance of infection. The astonishing find may finally explain why some people suffer serious illness with the virus, or even death, while others never get sick or appear symptomless.
LRRC15 is not known to be present in humans until the virus enters the body, but it appears after infection.
The protein helps activate the body's response to Covid and the team behind the incredible find hopes it will offer a promising pathway to develop new drugs to fight the virus.
Researchers believe that patients who died from Covid-19 did not produce enough of the protein, or produced it too late to make a difference.













Comment: See also: Massive peer-reviewed mask study shows 'little to no difference' in preventing COVID, flu infection