system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: Medical personnel should be required to change before leaving the hospital

This obviously doesn't apply everywhere like radiology or pathology, but staff that have contact with patients should be required to change into other clothes before they leave the hospital (and maybe even take a shower).

This is especially relevant during the COVID-19, but still applies before and after. 

Besides COVID, many doctors and nurses frequently come into contact with patients who have a cold or the flu, which can be carried on their clothes, especially in pediatrics and the ER.

It should be standard practice to issue new scrubs at the start of a shift and have them taken back to be laundered before leaving the hospital.
gpt
Virtually anyone leaving their home is exposed to similar levels of pathogens. If you walk into a crowded store or movie theater you're about as likely to exposed to infectious fomites as someone working in a hospital. Unlike laypeople however, medical providers observe routine hand hygiene and regularly wear protective equipment. Contrast that with any number of service workers or public servants. Teachers for example are exposed to tons of diseases by virtue of interacting with many community members (and also, children are gross as hell). Nonetheless, we don't observe strict sterile procedure when they leave the germ ridden cesspools that are your typical schools.

Beyond that, relatively few medical providers are routinely exposed to infectious diseases beyond or in greater frequency than what the lay population experiences in their day to day life. They interact with members of the public, but few of those people overall have an active infection that could easily be spread by fomites on clothing, badges, etc. Which is specifically what we're talking about - the small number of pathogens that spread on surfaces. Your average hospitalist spends most of their day managing chronic conditions, post-operative care, injuries, pregnancies, psych events, and many other non-transmissible conditions. 

Even then, few infections merit hospital visits. Most are nonserious affairs managed without medical attention, and a small number end up in outpatient facilities. Only a vanishingly small number of those merit hospital visits, often because of individual factors rather ones that would be indicative of community risk. A vanishingly small number of patients have easily transmissable infectious diseases, but these are managed with additional PPE should those diseases pose any real public health risk. And again, you're as likely to see them out in public - flus are annual pandemics for which we take few if any precautions outside of medical offices.

Besides, what would we actually accomplish? How many infections would we prevent? How many are serious? The common cold will run through an average office, but we don't quarantine office workers. Most providers will drive home and change after a shift. Even if they go somewhere in between, a fomite on an article of clothing is highly unlikely to infect some other person. We don't routinely snatch random people's clothing and dry contact between inert surfaces isn't exactly a super effective way to transmit disease. 

That question is important because what your suggesting isn't free - it would require sufficient changing facilities for all workers to change clothing at shift change. Shift changes generally can't be staggered because patients care has to be signed off between care teams during an overlap between shifts. It's a "all hands of deck" situation. Locker rooms are standard in hospitals, but they're a fraction of the capacity required for what you're suggesting. We're talking the entire locker capacity of a decent sized high school plus the physical room, benches, etc. needed for literally hundreds of people to change simultaneously. And you'd also have to police it, because people will try to get out of it, and hospital security at present isn't well equipped to keep people *in* the building.