Aunt Wang lived in Guangrao Road. He is 55 years old. He lives in a family of five. Wang Ayi said that in daily life, towels and toothbrushes are daily necessities. Their toothbrushes are hand-made. The towels are basically two to three per person. Aunt Wang said that because of the fear of bacteria, the usual toothbrushes and towels at home are also frequently replaced.
Aunt Wang said that washing supplies are prone to bacteria, which she already knew, and experiments have proved that coins, bedding and towels are the three indirect media for infectious diseases. Due to the influence of traditional living habits and consumption concepts, many citizens often neglect the role of towels in health, and continue some unscientific use methods: such as multi-person one towel, one towel multi-purpose, not broken or not. For the towels, toothbrushes and other items, what do the big guys usually do?
Compared with towels, how much do you have to change the toothbrush?
In the interview, the reporter found that most citizens are able to change their toothbrushes frequently, but some people have to use the bristles to change them. So, how many bacteria are there on old toothbrushes and towels? The reporter took a towel that had been used for 6 months and a toothbrush that had been used for 3 months from Wang Ayi’s house. In order to have more objective contrast, I bought a new towel and a new toothbrush in the supermarket. Together, I got the chemical laboratory of Qingdao University to do the bacteria test.
The first step in the experiment was to sample the sample. In order to ensure the accuracy of the test data, the experimenter must first disinfect, and then use ultrasonic waves to shake the bacteria in the toothbrush.
Next, take a towel sampling, take 5*5 cm squares on the left and right sides of the towel, use a cotton swab to dip the saline solution, and roll back and forth inside the towel square, in order to extract the bacteria on the towel more fully.
After 48 hours, how many bacteria will there be on this towel and toothbrush? Look at it more or less than what everyone expects.
Two days later, the experimenter took out the medium from the biochemical incubator. Hey, the small gray spots on the medium are bacteria, is it amazing! The next thing to do is to count the number of bacteria. With this electronic counter, you can calculate how many bacteria there are.
I really don’t know, I’m scared! These two times the number of bacteria is really amazing! On weekdays, I feel that the cleaning is very clean, but once I get here, the bacteria will be exposed.
In addition to regular replacement of new towels and toothbrushes, proper cleaning and disinfection is especially important. Full contact will introduce you to several good ways to sterilize towels and toothbrushes:
Towel disinfection method:
1 microwave disinfection method, the towel is cleaned, folded and placed in the microwave oven, running for 5 minutes to achieve the purpose of disinfection.
2 steam disinfection method, put the towel into the pressure cooker, heat for about 30 minutes, you can kill most microorganisms.
3 disinfectant disinfection method, disinfectant can choose to dilute 200 times of cleaning disinfectant or 0.1% chlorhexidine. Soak the towel in the above solution for about 15 minutes, then remove the towel and rinse with water.
Toothbrush disinfection method: First take a used toothbrush, then take a cup, which contains half a cup of warm water, take a packet of baking soda powder, use a spoon to take a spoonful of baking soda powder and put it in warm water to stir, so that the soda powder is completely dissolved. Then soak the toothbrush in the water and wait for 20 minutes to be OK. Then take the toothbrush to the faucet and rinse it.
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