This is why I think you're funny. Because you're original scenario involved:
my wife, and 20 other MDs at her hospital sat in a room with someone for 2 days who then became symptomatic and has been quarantined. The hospital is refusing to quarantine those 20 doctors unless they become symptomatic because they have been deemed essential staff and the hospital cannot function without them. My wife has not been tested, is not symptomatic and she is limiting her exposure to the best of her ability. To further separate your far fetched scenario there would never be irrefutable proof of who has passed the virus to someone else unless it was your ridiculous scenario of knowing you have it and intentionally attempting to infect as many people as possible.These patients have 20+ people in their room daily between doctors, nurses, janitorial staff, visitors, etc... No judge, investigator, lawyer would ever try to prove to a jury that someone spread a highly infectious virus to someone else. You sir, have watched too much CSI.