You know the difference from your post and my comment? I can actually read the linked articles without having to sign up and give out my email....not to mention this is old news, you really need to get out more.

https://www.reuters.com/article/us-health-coronavirus-science-idUSKBN2872LH

https://nypost.com/2020/10/14/people-with-blood-type-o-may-have-lower-risk-of-covid-19-infection/

https://www.dailymail.co.uk/sciencetech/article-8986815/People-type-O-blood-likely-catch-coronavirus.html