For those who are still interested, more information is coming from autopsies on people who have died of the virus. It is such info that will lead to a treatment regimen which will be important now and if a future immunization fails.
https://www.washingtonpost.com/health/2020/07/01/coronavirus-autopsies-findings/
https://www.washingtonpost.com/health/2020/07/01/coronavirus-autopsies-findings/