However, health care workers in the USA and Africa seem to have an unusually high percentage of wounded skin that, apparently, they don't know they have.
Then, they seem to have unusually bad luck, since the virus keeps finding the wounded skin they don't know they have.
Bottom Line - we have dozens, perhaps hundreds, of infections in people who were working in hazmat suits.
But we have no clear explanation for how they became infected, except that they “broke protocol.”
Not very helpful.
And not very calming.
I think the infection path in a lot of those was via mucous membranes following breaches of PPE removal protocol. But impossible to prove that. OTOH, it is very easy to demonstrate mistakes that can be made while doing that, especially in field conditions. Also, other than Doctors without Borders, many health workers used inferior gear.
A doctor from Richland is in Liberia right now — we are praying for him.