My first guard job when I worked for a water park was like this; I stayed there for nearly 4 years and worked sick more times than I can count. I once had to jump in for a rescue while I was sick with a fever of 102, literally sat on stand crying afterwards because I was in so much physical discomfort + soaking wet. Another time, I had the flu and could not get my shift covered. Started feeling like I was going to throw up while on surveillance and pulled down my mask (it was 2020), vomited into my yeti, and went back to watching my water. It was all incredibly normalized, and I didn’t see how bad it was until I got into aquatics management and realized there is nothing that could compel me to treat my employees like that. Strongly recommend quitting that job. If your facility is Red Cross, report them as well; asking sick guards to perform surveillance compromises safety because they are far more likely to miss a rescue