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This probability is very small, so don't worry, but pay attention in the future, if the body's resistance is poor, so as not to be infected with other germs.
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Toilet water on the train can get AIDS on the anus, so there is no need to worry.
The problem you may have is the lock above. The same goes for the lock above, and the knob will do the same. Very simple bro! I really can't open it when it's right, and I really try it again when it's wrong.
Absolutely not, the air dries, and the train passes by and the wind blows away, and it returns to nature.
This kind of worry is normal, because the dirty water in the toilet contains a lot of bacteria, but the human body is not a fragile vase, it can have a lot of self-protection ability, when the number of bacteria is small, and the human body resistance is very strong, it will not get sick. So please don't worry too much about this friend, if you wear a microscope, you can't live!
Not necessarily, it's okay if you have good resistance, there are no wounds, no infectious viruses.