Having had to go to the local suburban ER where umm undocumented citizens of the world congregate with their ailing family members I have my doubts about even the spacesuits and total diligence by hospital staff.
From the ER admitting counter submitting presenting symptoms and patient info to the first examination by the triage nurse to the actual ER bed cubicle or hallway wheel chair, with maybe a stop in the common toilet, a patient presenting flu like symptoms will have had contact with way too many surfaces.
At our local hospital ER we have the pretty much standard open nurse/admin cluster right at the ambulance entrance. The only barrier is a counter with no glass screens. An ambulance entry with 3 or more EMTs bring a gurney in is greeted by a nurse prepping a new chart doing the triage exam determing where to place the patient.
The waiting patient clusters are far larger in urban hospitals with far longer waits measured at times in hours with far greater opportunities for contamination and infection. I’ve never seen an ER waiting room wiped down except for floor clean up after a fluid incident.
All the PPE is employed after exposure has already occurred at the point of building entry.
Oops almost forgot the ever present snack and soda machines, magazines, and ATMs in the ER waiting room along with the nice fabric upholstered seating.
Seems like far too many contact points..