This is why Type O, which has trouble clotting, is most resistant to Wuhan C-Virus.
Where did you read that?
No need to reply, I found a couple of articles on it
That makes sense!
Also, there have been the strange reports of lower than average incidence of Covid19 illness among smokers. This might be related to nicotine’s retardation of the clot-formation property of thrombin.
https://www.ncbi.nlm.nih.gov/pubmed/1137933