Every year around November, my project lead gets sick but keeps coming to work. He always ends up giving it to a couple people. Since he doesn't take sick day, no one in the lab feels safe to take a sick day, and the lab quickly turns into a thick soup of virus. Then he will half jokingly comment the team output is reduced because people are falling sick one after another, as if he thinks we're either lying or slacking.
Should I slap him in the face to make him realize he is the source of all the problem? I will lose my job but that's okay, the work environment is literally toxic.