Understanding the mechanism of action and prevention of single machine viruses from various perspect

The competition in the 21 st century is not only the competition of talents and knowledge, but also the competition of psychological quality. The quality education advocated today requires healthy, high-quality talents who are conducive to social development, and a very important condition for the quality of talents is mental health. Therefore, attention should be paid to the mental health education of students, and the overall quality of students should be improved in an all-round way, so that students can become well-rounded people.

One. Bacteria and viruses are both microorganisms. "Micro" is not visible to the naked eye.

Under certain environmental conditions, both bacteria and viruses can multiply in the human body and may lead to the occurrence of diseases. Bacteria are large and can be seen with a normal light microscope, and their growth conditions are not high. Since bacteria have their way of growing and metabolizing, humans have a special ** called antibiotics to deal with it.

Viruses are relatively small and can only be seen with an electron microscope with a magnification of more than 10,000 times. The virus does not have its own metabolic system for growth, and its survival depends on the metabolic system of the host (such as human) and the cell dependent on others. It is also because of this that there are not many special antiviral drugs at present.

It is worth pointing out that there is a proliferation of bacteria in many parts of the human body. Medically called the normal flora, they live in peace with us and are mutually beneficial. In any case, the detection of a virus from the body is not an abnormal condition.

Because these viruses can only survive if they invade our living tissue cells.

Two. The clinical symptoms of bacterial and viral respiratory infections are similar, but the drug is different. Therefore, correct identification is extremely important to ensure rational drug use. The following describes the distinction between bacterial and viral respiratory tract infections from six aspects.

1. Epidemic viral respiratory tract infection has the obvious characteristics of group disease, most people get sick in a short period of time, or several people in a family get sick; Bacterial respiratory tract infections are more common in sporadic, and patients are rarely or absent from patients with epiphasia.

2. Viral upper respiratory tract infections generally have nasal runny nose symptoms that are more obvious than pharyngeal symptoms; In bacterial upper respiratory tract infections, redness, swelling and pain in the tonsils or pharynx are more obvious. If it is accompanied by diarrhea or conjunctival hyperemia, it tends to be a viral infection.

3. Simple viral respiratory tract infections mostly have no purulent secretions, and purulent sputum is an important evidence of bacterial infection.

4. The onset of virus infection is acute, and the symptoms of systemic poisoning can be mild or severe; Bacterial infection, on the other hand, can onset quickly or slowly, and the symptoms of systemic poisoning are relatively severe. If the fever is not high at the beginning, and after 2-3 days, the condition worsens, and it is mostly bacterial infection.

5. White blood cell count, generally caused by the total number of white blood cells in viral infected patients is low or normal, and the percentage of neutrophils in the early stage can be slightly higher. In bacterial infection, the total number of white blood cells and the percentage of neutrophils are high. Therefore, it is difficult to determine whether the causative agent is a virus or a bacterium if blood imaging is not done clinically.

6. For patients with upper respiratory tract infection with fever symptoms, antipyretic drugs such as aspirin or analgin, compound aminopyrine, etc. can be given. Virus** infection can achieve a temporary and obvious antipyretic effect, and systemic symptoms are also improved; However, patients with bacterial ** infection took the same dose of antipyretics, and the antipyretic effect was poor, and the systemic symptoms were not significantly improved.

There are bookstores, medical university books, popular science books, and more.

The disadvantages outweigh the advantages, you can't blindly chase them, you have to chase stars and heroes, and you have to chase people who have a good influence on yourself.

As long as you have the choice to chase stars, you have to look at the character of the stars that we are worthy of learning, learning stars, that is, learning their spirit!

For example: Liu Xiang Jet Li.

Properly chasing some fashionable stars is also cultivating sentiment.

The pros outweigh the cons or the cons outweigh the pros, I feel bad when I hear the word

Of course, the pros outweigh the cons; The reason manifests itself in many ways: from medicine: all kinds of modern techniques.

Benefit!

(Our class is also going to have a debate).

I choose Lida! I believe that the level of scientific and technological development of human beings in a few years is beyond the imagination of all of us here, just like the human beings who were drilling wood to make fire in the Stone Age, they could not have imagined that our world now has gas and electricity. Mankind will not be ruined by science and technology, on the contrary, science will only make mankind more and more progressive.

The development of science and technology is unlimited. What the other party says, you use this sentence to refute him, column: car exhaust pollutes the environment, refute that the development of science and technology is infinite, because the development of science and technology is infinite, who said that you can't build a car that doesn't pollute in the future? (Digression....)