I had read a brief article about this awhile back, and relayed it to someone who was scoffing at the COVID-19 panic, saying it was "like the flu". I know it went right past her by the look on her face.
I'm going to read more about the cytokine storms. It sort of sounds like what may have happened to my favorite husband. I had taken him to the ER, and he was diagnosed with pneumonia in both lungs. He had to be intubated and put into a drug induced coma on the first night. He developed sepsis and died after nine days. I was unwilling to accept that nothing could, or would, be done for him, and actually consulted a lawyer about malpractice. He sent my husband's records to an expert, and the expert stated that it sounded a lot like hantavirus. I just found the following article about a man in China who died from hantavirus in March, in the midst of this pandemic: https://en.as.com/en/2020/03/30/football/1585585053_586884.html
Thanks for posting this. I'll never have an answer about my husband, but I can't help but speculate.