Are there a lot of bacteria in the air?

Do you know how much dust there is in the air?

It's easy to rub against the air, and it can be charged so that small things like bacteria can be attached to it, and the air is not dry in most places, so bacteria can survive for a long time.

The vast majority of bacteria are not pathogenic!

If a small number of pathogenic bacteria want to enter the human body, they must also penetrate ** (break the mouth), or enter from the respiratory tract, oral cavity and other places.

**There are hair on the surface, nasal hair in the nasal cavity, which has a mechanical cleaning effect; At the same time, sebaceous glands, sweat glands, and oral salivary gland secretions have a certain bactericidal and removal effect; Oral cavity and body surface symbiotic bacteria have a certain antagonistic effect on foreign bacteria.

If the first line of defense is blocked, the human body will not react at all. Even if it is broken, there is a second line of defense, mainly lysozyme in body fluids, etc., as well as phagocytic cells. When the second line of defense is activated, there will be mild symptoms, such as local redness and swelling.

The second line of defense cannot be prevented, and when the third line of defense [Specific Immunity] is activated, it is possible to have significant illness at this time!

Analysis: Hello, there are a lot of bacteria in the air, so as long as your place is not bad, you should not be infected.

Guidance: Usually strengthen physical fitness, functional exercise, enhance physical fitness, and then eat more high-protein and high-calorie food. Take a protective measure.

Yes, there are a lot of invisible bacteria in the air. And our body has a lot of anti-virus systems that can effectively filter these bacteria (and wear a mask).

There are really a lot of bacteria in the air.

Common pathogenic bacteria in indoor air include Neisseria meningitidis, Mycobacterium tuberculosis, hemolytic coccus, diphtheria bacillus, pertussis bacillus, etc.

Bacteria also have a great influence on human activities.

On the one hand, bacteria are the causative agents of many diseases, which can be transmitted between normal human bodies through various ways, such as contact, digestive tract, respiratory tract, insect bites, etc., which are highly infectious and extremely harmful to society.

On the other hand, bacteria are also often used by humans, such as the production of cheese, yogurt and wine, the manufacture of some antibiotics, and the treatment of wastewater. In the field of biotechnology, bacteria are also widely used.

Basic Shape & Size:

Rod-shaped bacteria are called bacilli, and there are often short-rod or globular rod-shaped bacteria with similar length and width, such as Methano-Brevibacter (Methano-Brevibter); Rod-shaped or long-rod-shaped bacteria with a large difference in length and width.

Such as bacillus subtilis, clostridium fusiformis; branched or forked bacteria, such as bifidobacterium; Bamboo (both ends truncated), such as bacillus anthracis, etc.

If you have a cold around you, you will have the flu virus in the air, the air dust.

Not necessarily, some bacteria need aerobic respiration to survive, while others need no oxygen to survive.

Bacteria have many different ways of metabolism. Some bacteria only need carbon dioxide as their carbon source and are called autotrophs. Those who obtain energy from light through photosynthesis are called photoautotrophs.

Those that rely on oxidized compounds for energy are called chemoautotrophs. Other bacteria rely on carbon in the form of organic matter as a carbon source and are called heterotrophs.

Hello friend, not necessarily. Some bacteria need aerobic respiration to survive, while others need anaerobic to survive.

Some need it, some don't, some bacteria will die when they encounter air, and some bacteria will die without air.

The types and quantities of microorganisms in the air vary depending on the region, altitude, season, climate, and other environmental conditions. Generally, the content of microorganisms is highest in the air in livestock houses, public places, hospitals, dormitories, and city streets, while in the air above oceans, mountains, high altitudes, forests, grasslands, fields, snow-covered mountains or polar regions, the content of microorganisms is very small; Due to the natural settling of dust, the higher the content of microorganisms in the air close to the ground; In winter, when the ground is covered with snow and ice, there are few microorganisms in the air, and in the windy and dry season, there are more microorganisms in the air, and after rain, there are few microorganisms in the air. Airborne microorganisms refer to microorganisms that are present in the air.

Airborne microorganisms are the main airborne plankton, and are resistant to drier environments and ultraviolet rays, mainly cocci (aerobic bacteria including Octococcus) that attach to dust and fly from the ground, aerobic bacilli that form spores (such as Bacillus subtilis), wild yeasts such as Chromosporium, and spores of molds such as Penicillium. It also appears to be present in lower algae. Microorganisms in humans, animals, plants and soils can be dispersed in the air through droplets or dust, etc., in the form of aerosols.

Aerosol is a colloidal dispersion system in the air composed of particles, liquid particles are fog, solid particles are smoke, can be suspended in the air for a long time, so that the air contains a certain type and number of microorganisms. [1]

99% of bacteria are beneficial bacteria, they are found in food, water and air and spread from person to person.

According to different shapes, bacteria are classified into cocci, corynebacterium, spirochetes, vibrio, etc. Beneficial bacteria are also known as "probiotics," while other bacteria that help these bacteria function well are called "prebiotics." Like humans, these probiotics come in different varieties and unique names.

Bacteria can be said to be everywhere. Even if tap water has been disinfected, there will still be bacteria, which is very harmful to the human body. So when we drink water, we need to drink hot water, and if we want cold water, we also need it to be cold and boiled.

Where are bacteria more likely to grow?

First, the doormat can collect bacteria in the soles of the shoes.

One study found that nearly 96% of shoe soles had E. coli. Experts say that the neighborhood of the door is one of the dirtiest places in the home. If bacteria collect on the doormat, they will be brought into the house every time they enter the home through the doormat.

Method: Disinfect the doormat weekly with disinfectant. Try to keep your shoes outside the door; Don't leave bags or groceries on doormats.

Second, overnight garbage breeds a lot of bacteria.

There are more than 500,000 bacteria in kitchen sinks, which is 1,000 times the average number of bacteria in a bathroom. This is because the sink is damp and often accumulates garbage. If not cleaned up in time, germs can grow in hidden crevices.

This means that dishes, kitchen utensils, and even hands can be contaminated by it. Similarly, food waste.

If it is not dumped in time, it can also breed a large number of bacteria.

Method: Apply at least diluted bleach per week.

Clean the sink once; Kitchen waste was dumped on the same day.

Thirdly, faucets are susceptible to contamination by food.

Makes tap water moist and an ideal place for germs to grow. If you accidentally touch the faucet with dirty hands or if the faucet is contaminated with food, germs can multiply in the faucet and eventually form a microbial film that adheres to it. Microbial films can become larger, rupture, and fall on food and dishes, endangering human health.

Method: Soak weekly with diluted bleach and let tap water run for a while before applying.

Fourth, the car dashboard.

It is a breeding ground for mold spores.

A warm dashboard is suitable for the growth of bacteria. Air containing mold spores and bacteria is sucked into the car and generally adheres to it. Method: Wipe the inside of the car with disinfectant frequently, especially in the allergy season, and pay more attention to the hygiene in the car.

Clause. 5. Cruetboxes may cause cross-infection.

Many people do not wash their hands before taking vinegar, soy sauce, ketchup and other ghetto bottles, which may cause cross-infection of germs. Method: The outer surface of the cruet is frequently wiped and disinfected; When using, try not to allow the seasoning to run onto the bottle.

Sixth. The vacuum cleaner inhales a large amount of E. coli.

The vacuum cleaner will suck in a lot of germs and your favorite "food". One study found that 13% of vacuum cleaners had E. coli, which means germs can spread everywhere every time they are used.

Method: Replace the dust bag outdoors; It is best to choose a vacuum cleaner with a dust bag with antibacterial function; For vacuum cleaners that do not have a dust bag, wash them regularly with bleach and let them dry naturally.

Dark, damp place. Because many bacteria can multiply quickly in shady places, there are often more bacteria in places without sunlight. At the same time, the humid environment is also very conducive to the production of bacteria, so it is easy for bacteria to grow in humid places.

Kitchen sponges According to research, most bacteria are present in kitchens. Regularly used sponges hide a lot of bacteria, and the study shows that wet sponges provide the perfect environment for E. coli and Salmonella to grow. Workaround:

To prevent the growth of bacteria, kitchen sponges should be changed once a week.

Usually some unventilated places or humid places are more likely to breed bacteria, and we should pay attention to these conditions in our daily life.

After about two breaths, a bacterium entered the nasal passage.

In recent years, air pollution has been severe, and the amount of microorganisms in the air has also increased, but the number of microorganisms varies greatly depending on the environment. The index of air pollution is 1000 m, and in cities that are not polluted by air, the maximum microbial content in the air of 1m (1000L) is 1000, and the intake volume of a person is about 500ml (

Therefore, in the air that is not polluted, you can inhale at most one bacteria in one breath, that is, you can inhale at most one bacteria in two breaths.

In the process of respiration, whether bacteria can be killed or not is a process of "game" between the respiratory tract and bacteria, and whether bacteria can colonize respiratory tract infections.

or be removed, depending on the individual's physical condition.

The bacteria were first discovered by the Dutchman Antonie van Leeuwemhoek (1632-1723) on the tartar of an elderly man who had never brushed his teeth, but it was thought to be a natural occurrence.

It wasn't until later that Pasteur pointed out with a gooseneck flask experiment that bacteria are produced by bacteria already in the air, rather than producing stuffy babies on their own, and invented the "pasteurization method", which was hailed as the "father of microorganisms" by later generations. Noisy and sleepy.

The term bacteria was first coined by the German scientist Christian Gottfried Ehrenberg (1795-1876) in 1828 to refer to a certain type of bacteria, and the word ** means "little stick" in Greek.