How dirty are underpants?
▌ an average of 0.1g feces in a dirty underpants
Microbiologists all over the world have studied washing machines. A dirty underpants carries an average of 0.1g feces. There are Salmonella, E. coli and other bacteria in the excrement. Even if they are cleaned and dried correctly, the bacteria on them cannot be completely killed, so underwear should be replaced frequently!
▌ one gram of feces contains 10 million viruses
One gram of feces contains 10 million viruses, 1 million bacteria, 1000 parasite cysts and 100 eggs. Although some bacteria and viruses are beneficial to human body, most of them are harmful to human body. Especially when feces pollute water, food, tableware and clothes, most harmful microorganisms will enter the human body, causing harm to people.