It shows just how little we know of Covid-19Top scientists remain puzzled over how and why Covid spreads
In 15th-century Italy, a puzzling epidemic swept through the population, its origins and spread so baffling it was named “influenza” from the Italian “influence of the stars”.
Today, nearly 600 years later, the world is facing an equally perplexing respiratory virus, with unclear origins and confounding transmission dynamics.
Even now, after nearly two years of scientific endeavour, which has given us multiple vaccines and drugs to fight coronavirus, we’re still not completely sure about how it spreads or how to stop it. It is why the mask debate rages on.
An interesting read:
https://www.msn.com/en-gb/health/medica ... li=BBoPWjQ