https://thenextweb.com/syndication/2020/03/23/coronavirus-sequencing-the-dna-of-patients-screened-for-coronavirus-might-save-lives-covid19/

Scientists should start sequencing the genomes of coronavirus patients. We should look for DNA differences between patients who are severely affected and those with mild symptoms. This could allow us to predict who else would be vulnerable and advise them to take precautions. We may be able to use this knowledge against the coronavirus epidemic before a vaccine is widely available.

In particular, it would be valuable to know if key DNA variations are shared by those rare people who are young and appeared to be healthy but developed severe symptoms from the coronavirus. We might then be able to predict which doctors and nurses are most at risk and remove them from the front line.