A possible concise summary is:
The text is a transcript of a video where a group of explorers break into an abandoned hospital and explore its rooms and history. They encounter security guards, police officers, and graffiti warnings along the way. One of them gets caught and fined for trespassing while waiting in the car. They use radios, night vision cameras, and humor to communicate and cope with the situation.
Here are some possible facts extracted from the text:
1. The text is a transcript of a video where a group of people explore an abandoned hospital.
2. The hospital is where the polio vaccine was created and administered to 20 children, 17 of whom were cured.
3. The hospital closed in 1996 and has signs of no trespassing, vandalism and decay.
4. The explorers encounter security guards, police officers and a car circling the parking lot.
5. One of the explorers gets a ticket for trespassing while waiting in his car on a public road.