HIPAA, and you don't. (I'm sure the claim works on people, though.)
https://www.ems1.com/ems-products/cameras-video/articles/pho...
> Your basic HIPAA obligation when it comes to the press is very simple. Don't divulge any patient medical information to a journalist. Don’t discuss patient specifics within hearing or recording distance, at least not in great detail. Don’t write notes where they can be read. If you have a clipboard with medical information, turn it over so it can’t be seen in a photograph.
> Your HIPAA obligation does not, however, require you to stop me or others from taking images at the scene.
Can you keep them at a somewhat reasonable distance? Yes. Out of the scene entirely? Generally no, barring a hazmat incident or something where you'd need to be getting out too.