"We provide preliminary evidence that SARS-CoV-2 infects human bone marrow megakaryocytes,and this infection of megakaryocytes is directly responsible for triggering the immune-mediated pathology of severe COVID"
➡️Take your time, long but excellent science🧵, a must read!👏👍

An earlier study also illustrating SarsCoV2 #Bonemarrow involvement:

And a "very" old study(2020) giving maybe the first assist to the same SarsCoV2 #Bonemarrow involvement: