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1. Use bacteriophages to prevent and control the infection of dysentery bacillus, drug-resistant Pseudomonas aeruginosa and Staphylococcus aureus in animals, and achieve superior results than drugs. Yu He, a famous medical microbiologist in China, successfully used bacteriophages to successfully prevent and treat the infection of Pseudomonas aeruginosa in burn patients in 1958, which became a good story in China's microbial circle.
2. Frost-resistant phages can protect plants from the harm of frost.
3. The algae virus can remove the pollution of the algae on the water surface, and the test proves that the algae that pollute the water source will be completely cracked 7 days after the application of the LPP-1 virus, so that the water quality becomes clear.
4. Insect viruses have been successfully used to control pests. In China, the use of rat pox virus has been used to exterminate rats, and the mortality rate of experimental infection has reached 100%.
5. It is used for the prevention and control of plant diseases. In recent years, the use of fungal virus double-stranded RNA to control chestnut blight has been reported. Chinese virologists Tian Bo and others have successfully used satellite RNA to prevent and control diseases caused by cucumber mosaic virus.
6.Tools used in molecular biology and genetic engineering enzymes and genetically engineered vectors** for viruses. Reverse transcriptase of avian tumor virus, T4 DNA polymerase produced by bacteriophage T4, T4RNA ligase, T4 DNA ligase and T4 polynucleotide kinase are important tool enzymes for genetic engineering for genetic manipulation.
7.Viruses also have benefits for dealing with drug-resistant bacteria, BEIJING, Sept. 8 (Xinhua) -- New research shows that viruses that are harmless to humans can help us kill deadly drug-resistant bacteria lurking in hospitals. Domenico Janelli, an immunologist at the University of Federico II in Naples, Italy, and his colleagues tried to use bacteriophages against Staphylococcus aureus instead of new antibiotics.
While bacteria eventually become resistant to phages, just as they are resistant to antibiotics, new phages can be isolated quickly, and the development of new antibiotics is slow and costly, Janelli said.
8.Insect viruses as pesticides can kill pests: Virus preparations can be used in agriculture to prevent and control agricultural and forestry pests and diseases, such as the use of biological viruses to control pine caterpillars, cotton bollworms, corn locusts and other pests in a large area, which is not only safe and effective, but also reduces pollution and is conducive to environmental protection, so the use of viruses for biological control has important development prospects.
9.In addition, the vaccine is also an artificially processed attenuated virus.
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There are many types of bacteria and viruses, some of which can decompose oil to reduce the pollution of the sea surface, and some can decompose metals or other non-organic substances, which is of great value for scientific research.
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Some can decompose oil to reduce the pollution of oil to the sea surface, and some can decompose metals or other non-organic substances, which is of great value for scientific research.
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Viruses are not beneficial to humans, and the human body is attacked by viruses, which can cause various diseases and even death. The only virus that is beneficial is a weakly virulent vaccine, which is a drug made from a weakened strain of the virus that targets the virus, mainly to allow the body to produce antibodies to fight off the virus.
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Normally, viruses are harmful to the host for individuals, and even if the virus decreases in virulence as it evolves, it can only end up being a symbiosis of flakes.
But as long as it is used well, the virus is not necessarily without benefits. In terms of immune response, some viruses can act as vaccines, such as cowpox.
viruses and human poxviruses (i.e., smallpox virus.
There is a similar surface antigen, but the vaccinia virus is very harmful, so vaccinia vaccination can prevent smallpox infection.
In the long history of biological evolution, viruses have definitely been beneficial. Viruses, especially some retroviruses, often exchange species genes in cross-infected species across species, which greatly increases genetic diversity and accelerates the rate of evolution. Now it's a real beast.
Genes that are not attacked by the maternal immune system are likely to be susceptible to the virus. And it is precisely this key gene that allows mammals.
From oviparous or ovoviviparous to completely transformed into viviparous.
At the same time, pure asexual reproduction will create many genetically identical clones, and these identical individuals will behave the same when faced with the same virus. In order to prevent a population from being wiped out by a virus, organisms must increase the genetic complexity within their population, and sexual reproduction is born. Genetically different individuals exchange genes with each other, increasing genetic complexity, which also greatly accelerates the rate of evolution.
It can be said that without viruses, there can be no humans.
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Viruses are certainly not beneficial to humans, some are only bad, viruses will attack various systems of the human body, and degrade various functions. So we need to work together to eradicate the virus.
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Viruses are not beneficial to human beings, they can cause harm to the human body in some way, so we cannot say that viruses are beneficial to human beings.
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Vaccinia virus. It saved the lives of hundreds of millions of people and helped eradicate smallpox once and for all.
Adenovirus. This small virus can only cause mild infections of the respiratory tract, but it is a very useful gene carrier. Recombinant adenovirus is widely used in the development of various vaccines, including the extremely dangerous Ebola.
Lentivirus (HIV).
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1。The inactivated virus can be used to make antibodies, which are widely used in medicine.
2。Some special viruses that are harmless to the human body can be genetically engineered and used as carriers of genes.
3。The specificity of certain viruses can be used to deal with germs that are harmful to the human body.
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Are viruses beneficial to humans? Come, if there are those who say, then there must be, as a virus, some of them also need the balance of the human body, if you can't beat his average, he will be that kind of disease, generally speaking, he also has that kind of benefit.
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Nothing very useful.
If you have to say yes, it may be that antibodies are generated.
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Viruses are part of the human body, they are not only harmful, but also have certain benefits, which can promote metabolic regeneration and produce antibodies to viruses in our body.
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Yes, the places where the virus has been have greatly increased people's awareness of prevention.
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There are some viruses that are beneficial to the human body, and viruses can experience a person's physique. If you have a good physique, you can see some viruses.
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I think viruses are good for humans, such as developing vaccines.
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Not all viruses are not good for humans, sometimes some fever is particularly helpful for some harmful substances in our body, which can kill bacteria.
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1. Harms:
1. Viruses and bacteria do have a great impact on human life. Many diseases are caused by viruses and bacteria, but with the development of science and technology, some bacteria can also be used in food production.
2. People often talk about bacteria and viruses and change color, because they will invade people's bodies, make people sick, and even die.
3. Some bacteria become pathogens, causing a variety of diseases. In plants, bacteria cause leaf spot, fire blight, and wilting. Infection can be carried out by contact, airborne transmission, food, water, and infected microorganisms.
Pathogens can be treated with antimicrobials, which are divided into bactericidal and bacteriostatic types.
2. Benefits: 1. Bacteria are usually used with yeast and other types of fungi to ferment foods, for example, in the traditional manufacturing process of vinegar, it is to use acetic acid bacteria in the air to transform wine into vinegar. Other foods made with bacteria include cheese, kimchi, soy sauce, vinegar, liquor, yogurt, etc. Bacteria are also capable of secreting a variety of antibiotics, such as streptomycin, which is secreted by Streptomyces.
2. The ability of bacteria to degrade a variety of organic compounds is also often used to remove pollution, which is called biological reproduction. For example, scientists use methanophils to break down trichloroethylene and tetrachloroethylene contamination in Georgia, USA.
3. Bacteria also have a great impact on human activities. For example, the production of cheese and yogurt, the manufacture of some antibiotics, and the treatment of wastewater are all related to bacteria. In the field of biotechnology, bacteria are also widely used.
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Beneficial bacteria include yeast, a variety of bacteria in the large intestine that help digest and break down food, but some bacteria are beneficial in one place and can become pathogenic bacteria in another place.
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Are bacteria and viruses harmful? Expert: They are even our ancestors!
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The bacteria carried by the body of ordinary people are normal bacteria and are harmless to the human body, but viruses are generally harmful. If a normal bacterium runs to a place where it shouldn't, it's called a conditional pathogen, and it causes the disease.
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Bacteria are harmless to us humans, viruses are harmful to us, and we want to prevent diseases.
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It's no good, most of the people who develop it are for money, online black gold is very popular, a virus, you can play a network for a few cents, don't be too little, if there are 1 million viruses, this developer will become a millionaire.
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The existence of viruses has also brought many benefits to humans. When treating burn patients, the most worrying thing is that the burn surface is infected by Pseudomonas aeruginosa, which causes difficulties to **. If you use the phages of Pseudomonas aeruginosa (because they dissolve and kill Pseudomonas aeruginosa), you can prevent it from happening.
In farmland management, farmers are most afraid of pests, in order to kill them, farmers use a large number of pesticides, but a large number of pesticides kill pests at the same time, but also kill a large number of beneficial insects, and the nature of pesticides is stable, not easy to decompose, they accumulate and store in soil, water, organisms, and transfer to each other, forming environmental pollution.
With the development of science and technology, in recent years, pesticides have been gradually replaced by "biological missiles", which are bacteria, viruses and so on.
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Influenza viruses are inactivated, disinfected, and diluted to become influenza vaccines.
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