Is it really contagious to live in a hotel or hotel toilet?

First, there are enough pathogenic microorganisms in crowded places; Second, the toilet has just been used by patients with sexually transmitted diseases or skin diseases, especially when they leave bloody, purulent or mucinous secretions to pollute the toilet; Third, the user's skin and mucosa are damaged and exposed to these microorganisms. In addition, users have low immunity and may get sick.