The nurse didn’t even have hazmat gear. They cared for the patient with just gowns, gloves and face shields. They received no special training. It’s likely they got sick because they didn’t know the correct doffing procedure.
But in the last few day we KNOW that wasn’t enough. The second nurse has no excuse for traveling. I don’t give a chit WHAT the CDC told her she already was well aware of the risks involved.