Hand pollution and health
According to laboratory tests, a gram of nail scale contains about 3.8 billion bacteria and a large number of parasitic eggs. The germs that can be found from the hands are dysentery bacillus, typhoid bacillus, vibrio cholerae, staphylococcus, streptococcus, diphtheria bacillus, pseudomonas aeruginosa, tuberculosis bacillus, Proteus bacillus, Bacillus cereus, etc., viruses such as hepatitis virus, influenza virus, polio virus, etc., insect eggs such as roundworm eggs, pinworm eggs, etc., in addition to various molds.
How is the pollution of the hands so serious, how is it caused?
In life and work, the hand has to touch many objects. Some of these items are inherently dirty, such as farm tools, dirt, eggs, vegetables, fruits; Some are frequently touched and grasped by people because they are public goods, and the germs are transmitted by the patients and carriers among them.
After engaging in industrial and agricultural labor and other work, people generally pay attention to washing their hands, but they often do not know enough about the serious pollution of hands that will cause after contact with public supplies, and the pollution of public supplies by germs and the like is indeed quite serious, especially worth mentioning: hospital door handles, toilet door handles, bus handrails, public taps, telephones, playing cards, books with high library borrowing rates, newspapers, banknotes used in circulation, etc. They all carry a large number of germs.
According to laboratory tests, the cashier worked for an hour and a half, and the bacteria on his hands could reach 120,000 or 30,000. In addition, when using hand paper after defecation, even if it is folded into 5 to 8 layers, there will be a lot of bacteria passing through and adhering to the fingers; When sneezing and blowing the nose, even if a handkerchief or tissue is used, the droplets of nasal secretions will stain and fall on the hands, and these droplets carry thousands of bacteria and germs, and when suffering from colds and rhinitis, the opponent's pollution is more serious.
Children are curious, mess around, play with toys, play with dirt, and have more bacteria on their hands. Knowing the severity of hand pollution, the importance of maintaining hand hygiene by washing hands is self-evident, but if the way of hand washing is not correct, for example, if several people or more people wash their hands with basin water, not only can not remove germs, but make the pollution more serious; Some children only put their hands into the basin to dip when washing their hands, which does not play a role in removing germs.
According to experiments, washing hands with an ordinary basin of water can only remove about 10% of bacteria; If you scrub your hands carefully with soap first, and then rinse them with running tap water, 76% of the bacteria can be removed; If you wash it again use 0. If you soak 3% of the bleach powder solution for 3 minutes, most of the bacteria on your hands can be killed. Of course, usually as long as you scrub it with soap carefully. After nursing an infectious person, or packing up supplies for an infectious person, it should be soaked with disinfectant liquid.
After washing your hands, wipe them with a clean towel, otherwise, the freshly washed hands will be contaminated with bacteria again. Towels should be washed and dried frequently and kept clean. In addition, pay attention to cutting nails frequently, so as not to hide dirt and dirt on the nails. Clean skin can secrete some bactericidal substances, such as lactic acid secreted by sweat glands and unsaturated fatty acids secreted by sebaceous glands, which have a certain killing effect on bacteria. However, dirty skin will affect the secretion of these substances, greatly reducing the bactericidal function. According to laboratory tests, bacteria can be reduced by 85% after 10 to 20 minutes on Qianjing's hands, while on dirty hands, after 20 minutes, more than 95% are still alive.
Therefore, washing hands frequently and keeping hands clean and hygienic is of great significance to sterilization and disease prevention. The following cases are special. Don't pay attention to washing your hands: after work, after the bus, after seeing a doctor, after a phone call, after playing, after going out and going home, after defecating, before eating. #我在头条搞创作 #
