Individuals over 70, those with underlying conditions, and healthcare workers are the most vulnerable groups for serious illness from SARS-CoV-2.

“those tend to be individuals over the age of 70 those who have underlying disability including diabetes or hypertension or heart disease maybe those at immunosuppressive therapy although we don't know as much about that also quite an interesting health care workers so a lot of health care workers are getting infected because this is so highly transmissible and they're coming into contact with patients and for reasons that we don't understand healthcare workers are getting a higher level of serious disease than you would expect given their age groups”