Do toilets breed bacteria? Should the toilet cover be covered

? I believe many friends have heard that the toilet carries bacteria and the bacteria can spread further and longer with the impact of cyclone and water. Is that right? Is the toilet lid good or not? Let’s take a look at the most scientific explanation collected and spread it to your relatives and friends, small health and big achievements.


do toilets breed bacteria? Should the toilet cover be on

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it is said that when we press the toilet button, the instant cyclone in the toilet can carry the bacteria up to 6 meters in the air and suspend for several hours. And our toothbrush, towel and toilet may share a room, human health is naturally vulnerable to bacterial invasion.

Dr. Philip of New York University pointed out that if the toilet lid is opened during flushing, the instantaneous cyclone in the toilet can carry bacteria or microorganisms up to 6 meters in the air, and suspend in the air for several hours, and then fall on the wall, toothbrush, mouthwash cup and towel. Nowadays, in most families, toileting, washing and showering are carried out in the bathroom. Toothbrush, mouthwash cup, towel, etc. share the same room with the toilet. Naturally, they are vulnerable to bacterial contamination. Therefore, the habit of covering the toilet lid when flushing should be formed.

according to the numerous papers cited in the two medical reviews published in 2012, there is indeed a certain relationship between the cyclone caused by water pumping and the spread of microorganisms, and the habit of closing the toilet cover when flushing is also worth promoting. However, when these studies spread on social platforms, there are many key information in the research& mdash; Which microorganisms are likely to spread through this route? What is the scope of the spread of these microorganisms? How much potential harm does the spread microorganism have to human body? All of these are ignored, only compressed into a simple conclusion, and added & lt; The instant cyclone in the toilet can carry bacteria or microorganisms up to 6 meters in the air and suspend them in the air for several hours;. The studies did not mention the details.

not all microorganisms are & lt; Soaring up & quot;

only those with & lt; Gifted & quot; Only by taking advantage of the wind of the toilet cyclone, can we show our microorganism; Power & quot;. In 2005, a study found that Salmonella cultured in the toilet can aggregate into a kind of bacteria called & lt; Biofilm & quot; Its structure is firmly rooted in sewers. Because there is such a bacteria’s & lt; Reserve;, Twelve days after the experiment, they were still found in the toilet. This also increases the possibility of their propagation by pumping cyclones. Other microbes, unable to go deeper, look in the opposite direction. As early as 1980, scientists found that bacteria with more lipid in cells were more likely to accumulate on the surface of water. If there is a cyclone that can pick up the microorganisms in the water, they will be the ones in the microorganisms; Vanguard;.

however, the characteristics of these microorganisms themselves are not enough for them to spread from the toilet to the air, and the power of the cyclone also determines the spread range. Interestingly, so far, people still have little knowledge about the physical characteristics of this kind of cyclone. The only certainty is that this kind of cyclone will change with the type of toilet.

the bacterial infection capacity of toilets is limited.

, because of the different microorganisms in the experiment, the range of spread is also different (the experimental closestool is siphon type). Within two hours after flushing, E.coli will be concentrated in the range of about 1 meter in diameter with the toilet as the center, Salmonella can spread to the same range within 30 minutes, and Clostridium will mainly gather in the range of 25 cm from the toilet seat to the toilet within 60 minutes.

in some experiments that have been observed for a long time, microorganisms can spread to the whole bathroom at very low concentration (only 20% of the culture dishes on the wall have bacteria growing, and the longest number of colonies in a single culture dish is 5; Only 5% of the dishes in the bathtub have bacteria growing, but there are more than 100 colonies in a single dish, which is also related to the mixing and diffusion of droplets containing microorganisms and air.

in these studies, however, there was no record of microbial diffusion to a height of 6 meters. As for how long these microbes can stay in the air, there is no final conclusion.

in some extreme cases, microorganisms transmitted by toilet cyclone may affect human health. Mycobacterium tuberculosis lipid more, easy to accumulate in the upper layer of toilet residual water. When a person’s gastrointestinal tract is infected with Mycobacterium tuberculosis, it will cause diarrhea, causing re transmission. However, it is estimated that this only accounts for less than 5% of the total infection cases. Another possibility is that the microbes spread through the toilet cyclone are well-known & mdash& mdash; SARS virus. In 2003, the report of the SARS outbreak in Hongkong’s Amoy garden speculated that the excretion of SARS patients at the initial onset may be rapidly spread through the sewer and exhaust fans on the floor, causing an outbreak of SARS in the whole building. But these are either extreme cases or unconfirmed research guesses.

form a good habit of flushing toilet lid

no matter which kind of microorganism wants to cause disease, it needs a certain pathogenic dose. In the experiment, the researchers mixed the microorganism with the feces or culture medium to form a suspension to test, which naturally contributed to the spread of microorganisms. In real life, only diarrhea or vomiting is close to the experimental conditions. In other words, normal defecation will only limit the spread of microorganisms, and the concentration in the air will be lower. However, the concentration of microorganisms suspended by the cyclone in the air can vary by hundreds of times according to different species, so whether the microorganisms brought by the toilet cyclone can cause disease remains to be further studied in the future.

from the existing research results, some microorganisms are more likely to accumulate around the toilet. The cyclone when the toilet flushes can indeed cause the spread of microorganisms. Some measures can reduce the spread of microorganisms through cyclones. The easiest way is to cover the toilet when flushing. This simple method can reduce the amount of microorganisms splashed to 1 / 12 of that without a cover. In addition, cleaning the toilet and water tank regularly with disinfectant water can also limit the microbial residues in the toilet. Although the spread scope and time of these microorganisms are unknown, it can help us to reduce the potential health risks by covering the toilet cover when flushing the toilet and regularly cleaning the toilet and water tank with disinfectant water

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