Why does SARS-Cov-2 (i.e. Covid-19) spread like wildfire? More education :)

[PMRpro]

medicalnewstoday.com/articl...

This popped up in the daily bulletin and is really worth reading even if it hard work maybe. At the bottom of the article you will find a whole load of links about Covid if youa re short of something to read while self-isolating