Do flies get sick if they live in garbage heaps all day long? Why?

Flies have evolved glands with strong immunity, and an important component is antimicrobial peptides, which are considered to be the best alternative to antibiotics in the future if antibiotic drugs lose their efficacy due to the increased resistance of bacteria. The body of flies contains an antibacterial active protein, which can eliminate and kill various germs. Flies stay in dirty places all year round and carry many germs on their bodies, but they don't get sick themselves.

This is because some pathogenic microorganisms, although they can survive or reproduce in the vector insects, do not cause harm to the insects themselves.

The body of flies contains an antibacterial active protein, which can eliminate and kill various germs. Flies stay in dirty places all year round and carry many germs on their bodies, but they don't get sick themselves. This is because some pathogenic microorganisms, although they can survive or reproduce in the vector insects, do not cause harm to the insects themselves.

As early as the 60s of the last century, Japanese scientist Professor Shunji Natori isolated a small molecule protein from the digestive tract of flies, and dropped it on the medium of typhoid, cholera, dysentery, encephalitis, enteritis and other bacteria, and most of the pathogenic bacteria that grew well dissolved and died. It is this bactericidal substance that keeps the flies in the germs and never gets sick.

Antimicrobial peptides can also effectively kill human parasites, and also have a toxic killing effect on the protozoa in the body of the tsetse fly, bringing hope to the ** of Lyme disease on the African continent. Nowadays, almost all pathogenic bacteria have developed varying degrees of resistance to antibiotics, and anti-infection has become a major problem for doctors. According to medical reports, staphylococcus and Mycobacterium tuberculosis have made a comeback, and the number of people suffering from tuberculosis has risen worldwide, penicillin and streptomycin have no effect on these two bacteria, and antimicrobial peptides have become the new ** against pathogenic bacteria.

Most of these bacteria are harmful to humans, such as typhoid bacillus, dysentery bacillus and other pathogens, but they are not harmful to the flies themselves. This is because some pathogenic microorganisms can survive or reproduce in the body of the vector insect, but they will not cause harm to the insect itself. This is due to an adaptation between the pathogenic microorganism and the vector insect over a long period of evolution.

According to experiments, many bacteria that are harmful to humans only live in the digestive tract of flies for five or six days, some of them die, and some of them are excreted with feces. So, although flies stay in dirty places and carry a lot of bacteria in their bodies, these bacteria do not make it sick.

Flies do not appear to be sick; Because the body of flies contains a very special active protein, this active protein has antibacterial, anti-inflammatory and sterilization effects, and can resist various bacteria and viruses for business, so flies will not get sick easily.

It will definitely get sick because these are very harmful to the body, and they are all particularly dirty places, which can affect a person's respiratory tract and also make a person have very serious diseases, and there may be some. Infect.

You won't get sick at all, because flies live in garbage heaps, and there are a lot of germs in the body of flies, so you probably won't get sick.

No. Because flies have adapted to living in garbage heaps and do not adversely affect themselves, they do not get sick.

Flies can transmit many viruses, but why don't flies get sick?

The living environment of flies is so dirty, why do flies never get sick? After reading it, I have solved many years of doubts.

Although the fly carries so many harmful microorganisms, it never gets sick itself. Every organism has a suitable place for it to grow and reproduce, and bacterial pathogens are no exception. However, although the germ can survive in the fly, it cannot multiply in large quantities or produce a large amount of toxin, and the fly can also adapt to trace amounts of toxin.

Experiments have proved that many bacteria that are harmful to the human body can survive for 5 to 6 days in the digestive tract of flies, some of them die, and some of them are excreted with feces, and the bacteria will not survive in the flies for a long time. Of course, flies won't get sick.

In addition, there is also an antibacterial active protein in the body of flies, which is very lethal like a cannonball, as long as the concentration of 1/10,000, it can destroy various germs, which is one of the reasons why flies do not get sick.

Flies are almost the public enemy of humans, and there is hardly anyone who does not hate flies. Hate a person, we can say, this person is scurrying around like a fly. Doing one thing wrong, people will say it's as disgusting as eating a fly.

If a person is accused of chasing fame and fortune and has no shame, he will say that this person is a fly camp and a dog. In order to get rid of flies, people resorted to all possible means. For example, every house is equipped with screen windows to prevent flies and mosquitoes from entering the house; Every family has a fly swatter, and when they see a fly, they kill it; There is a kind of paper in the kitchen that sticks to flies, and flies are stuck as soon as they fly; Wait a minute.

Not to mention that public health agencies have adopted large-scale extermination instructions, widespread spraying to eliminate flies, and maggots to eliminate flies. And yet, the flies are still so arrogant and annoying! I'm surprised, why is the vitality of the fly so strong?

Later, I looked through a lot of information to figure out the reasoning.

Flies often appear in dirty and messy environments, feeding on putrefactive organic matter, such a harsh environment, naturally let flies be contaminated with a lot of bacteria, but why are they okay themselves?

The fly survives in a very dirty environment and eats spoiled food without getting sick because it has a completely different digestive system than our common mammals, and bacteria can't help them at all. Common mammals need to eat food first, and the food is digested and absorbed in the stomach, while flies digest the food before eating, and then suck the digested food into the stomach in liquid form, and the stay time in the stomach is only 7 11 seconds, and the bacteria are excreted before they have time to multiply. This type of digestion is called in vitro digestion and is used by many insects.

They spit saliva and digestive juices into the body of their prey, and then the enzymes in the body fluids break down the food, and then they can "suck" the digested food into the body. Flies are one of the insects that have such a wonderful digestive system.

The large amount of hair on the surface of the fly, as well as its digestive and blood systems, can carry pathogens that can then be transmitted to humans through contact with food. Because the infection of pathogens is done during the feeding process of flies, flies only eat liquid food, and they have to change the food from solid to liquid before eating, swallow it to the front of the intestine for storage, and then send it to the middle of the intestine for digestion. Flies secrete large amounts of saliva from the salivary glands in their mouths (these salivary glands are found all over the body) before eating, and vomit food stored in the foregut onto the food at the same time as eating.

Thus, in the process, pathogens located in the salivary glands or foregut are spread.

Flies also excrete rapidly during feeding, and excreta from the hindgut can also spread pathogens into food. They will vomit, eat, and pull on food, and although this method of eating ensures the health and safety of flies, it is not very good for humans, especially when flies land on our food. They carry a lot of bacteria and viruses, so never eat anything that flies have eaten!

First, although flies always appear in dirty places, they must not get sick themselves. In their research, scientists have found that the larvae of flies have a particularly strong bactericidal substance.

Because the fly itself is very resistant to viruses, its organs are able to resist most bacteria. So flies won't get sick even if they're in a dirty environment.

The digestive tract of flies contains an antimicrobial active protein that eliminates and kills various germs. Flies can carry a variety of deadly microorganisms, and it is they that form an adaptation with microorganisms, so flies do not get sick.

Flies stay in dirty places but do not get sick, this is because flies and these bacteria are mutually adaptable, and these bacteria do not affect the life safety of flies, this is because flies contain an active protein in their bodies, which can then be antibacterial and sterilized.

The reason why flies stay in dirty places but don't get sick is because these places are very nutritious and suitable for the growth of flies, so they don't get sick.

We all know that flies are always in and out of the garbage heap, but why don't they get sick? This is because flies have an extremely fast metabolism, and it only takes 11 seconds to complete the process of food digestion and absorption and waste expulsion, and bacteria have no chance to stay and reproduce. Secondly, flies have something called an antimicrobial active protein that destroys bacteria quickly.

Even some germs that can reproduce in 3 to 5 seconds will be tracked and destroyed by the immune proteins in the flies.

Flies can transmit many viruses, but why don't flies get sick?

Flies have an enzyme in their body that digests viruses so flies don't get sick.

Because you don't know when flies get sick.

Studies have found that flies are infected with many bacteria in their bodies. But in the long-term evolutionary process, an adaptation has developed between bacteria and flies, and flies have a strong immune function to bacteria. These disease-causing microorganisms can survive or reproduce in insects.

The bacteria infected by the fly mainly hide in its digestive tract, and after 5 to 6 days, some of the bacteria die, and the other part is excreted with the feces. So, although flies stay in dirty places and carry a lot of bacteria in their bodies, these bacteria do not make them sick.

Studies have found that flies are infected with many bacteria in their bodies. But in the long-term evolutionary process, an adaptation has developed between bacteria and flies, and flies have a strong immune function to bacteria. These disease-causing microorganisms can survive or reproduce in insects.

The bacteria infected by the fly mainly hide in its digestive tract, and after 5 to 6 days, some of the bacteria die, and the other part is excreted with the feces. So, although flies stay in dirty places and carry a lot of bacteria in their bodies, these bacteria do not make them sick.

In addition, there is also a sterilization of flies, Japanese scientists isolated a small molecule protein from the digestive tract of flies, and dropped it on the medium of typhoid, cholera, dysentery, encephalitis, enteritis and other germs, and most of the pathogenic bacteria that grew well were dissolved and died. It is this bactericidal substance that keeps the flies in the germs and never gets sick.

From this point of view, flies really have diamond diamonds, so they dare to take this porcelain job. The use of bactericidal substances in flies can also contribute to the medical development of humans. Flies live in a dirty environment and carry hundreds of thousands, or even hundreds of millions, of bacteria.

However, over the course of long-term evolution, flies have fully adapted to the presence of bacteria. When bacteria enter the fly's body, some of them die and some of them are excreted, so the fly can survive in dirty places where there are many bacteria and will not get sick.

Unclean places can infestation flies with bacteria, but the long-term relationship has formed a suitable state.

Flies like to live on droppings and putrefactive things, which are home to a lot of bacteria. Flies staying in these dirty places and eating these dirty things will inevitably infect them with a lot of bacteria.

Because flies have this substance in their bodies to protect themselves.

The bacteria simply can't survive in the fly's body, so it won't get sick.

Because it is inherently resilient, it stays there to absorb nutrients.

Scientists have calculated that a single fly often carries hundreds of thousands to more than 500 million bacteria. These bacteria, which are harmful to the human body, only live in the digestive tract of flies for 5 to 6 days, and some of them die and some are excreted.

Because it's used to being in such an environment.

Because in its body there are substances that fight bacteria.

Although infected with a lot of bacteria, flies have become accustomed to these bacteria.

Flies have a high tolerance to these bacteria.

Over the course of a long period of evolution, it has developed a symbiotic relationship with bacteria.

Probably because the flies have a protective outer body.

It's a difference in the living environment. The body of the fly is resistant to a large number of bacteria, and it forms a mutually beneficial relationship with the bacteria.

Flies tend to feed on fecal bacteria in dirty areas, which is their habit.

Because flies have adapted to that environment.

Because this is its own living environment, but it itself has a lot of viruses.

Flies are very adaptable and do not die easily.

In the summer, when I went to the public toilet to urinate, as soon as I entered, many flies swarmed up, I took a look, and saw that there was not a single dead fly in the public toilet, I had a whim: flies stay in public toilets, garbage heaps and other dirty places for a long time, and their bodies are contaminated with many germs, and the germs are transmitted to humans, so that people have many diseases, but the flies themselves do not get sick, why is this? Thinking of this, I quickly pooped and ran home.

Running to the house, I walked to the desk, found my favorite "Can't Ask the Little Doctor" from the stack of books, read it hungrily, flipped through it, I suddenly found an article about flies, I looked at it, I knew: it turned out that this was due to the pathogenic microorganisms and insects, in the long-term historical evolution process formed an adaptation, many bacteria harmful to the human body, in the digestive tract of flies can only survive for five or six days, some of them die, and the other part is excreted with feces. Since these germs do not survive in the fly's body for a long time, the fly will not get sick even if it stays in a dirty area for a long time.

Seeing this, I think scientific knowledge is amazing!