Scientists at the Francis Crick Institute have found important structural similarities between SARS-CoV-2 and a pangolin coronavirus, suggesting that a pangolin coronavirus could infect humans.
While SARS-CoV-2 is thought to have evolved from a bat coronavirus, its exact evolutionary path is still a mystery. Uncovering its history is challenging as there are likely many undiscovered bat coronaviruses and, due to differences between bat coronaviruses and SARS-CoV-2, it is thought that the virus may have passed to humans via at least one other species.
crick.ac.uk/news/2021-02-05...
Nature Communications. Study Paper:
Who could you ask about if your entitled to any benifits. 
I seem to be lurching from pillar to post, Oxygen compressors advice
Cordyceps and COPD or Magic Mushrooms and the Breathless Wonder
Bronchiectasis diagnosis
