How many types of flu are there? What is the flu?

It seems that it is mainly divided into three types, A, B, and C, and each type is divided into a number of subtypes. However, when I went to the hospital for a physical examination a few days ago, the doctor said that as long as the condition is controlled in time and the medicine is taken in time, it will be fine, so I also prescribed several boxes of crack for this, so you don't have to worry too much.

Non-medicinal**:

Wipe the body with copper coins, coins and other smooth hard objects dipped in liquor, gently scrape the front and back chest, curved pool and lower limb flexure until ** red and hot, and then drink a bowl of hot ginger syrup, about 15 minutes later, sweating profusely. After sweating, the body is relaxed and comfortable, and at this time, pay attention to avoid wind and cold, and the cold will be cured quickly.

20 to 30 grams of fresh ginger, peeled and chopped, put in a large bottle of Coca-Cola, boiled in an aluminum pot, and drunk while hot after a little cooling, the effect of preventing and treating influenza is good.

Breathe in steam When you have a cold for the first time, pour boiling water into a cup and breathe deeply into the hot air until the water in the cup is cold, several times a day, to reduce nasal congestion.

Hot air blowing on the face At the beginning of a cold, you can use a hair dryer to blow hot air on the temples for 3 to 5 minutes, several times a day, to reduce symptoms and speed up healing.

Daily care: Drink plenty of water and rest if you have a cold. Nutrition should be balanced.

Medicinal**: Colds are usually caused by viruses, and generally belong to the replication period of viruses in the early stage of colds, so taking antiviral cold medicine at this time can shorten the course of the disease and make the cold get better faster. Antiviral drugs like Tamiflu, which is used for influenza, are like this, the sooner they are taken, the more effective they are, and the sooner you take the antiviral crack you usually eat, the better.

Influenza is divided into several categories: the first type is the most common, simple influenza, which is dominated by systemic poisoning symptoms and relatively mild respiratory symptoms.

The flu is more painful than a cold. Epidemic fever — the medical name for influenza — is caused by a virus, similar to the common cold. There are many similar symptoms – cough, runny nose, sore throat, and fever.

Influenza viruses a, b, c

There are three different types of influenza viruses – A, B, and C, but no matter which one you have, you will be in a bad situation. The fever can make it uncomfortable for a whole day and last for a whole week. Accompanied by upper respiratory symptoms, there will be chills, tremors, a feeling of total destruction, muscle pain, red eyes, and even vomiting or diarrhea.

Ear infections, sinusitis or pneumonia, can follow after the flu. But this secondary infection can be treated with antibiotics**. Unfortunately, the flu cannot be stopped (antibiotics are useless in antivirals).

Drugs such as amantadine have been found to help shorten tolerance to influenza virus A, but their effect is limited. To be effective, it must be taken within 20 hours of the onset of flu symptoms.

The full name of influenza is epidemic ** epidemic, also known as seasonal ** epidemic. It is not the same as the common cold. It is more likely to occur in the winter and spring of each year. It is very contagious and often clusters. Common viruses that cause epidemics include influenza A virus, influenza B virus, etc.

Patients with influenza have a sudden onset and a rapid rise in body temperature. It often rises rapidly to more than 39 degrees, accompanied by chills, chills, muscle aches and weakness, and severe systemic symptoms. Local symptoms such as sneezing, runny nose, cough, and sore throat are relatively mild.

Complications can occur in people with the flu, especially those with chronic underlying medical conditions. It will be complicated with pneumonia, respiratory failure, myocarditis, encephalitis, etc. Therefore, influenza needs to be antiviral**.

Oral oseltamivir antiviral** can be used, and if the disease is severe and there are serious complications, intravenous peramivir antiviral** can be used. For children under 6 years old, the elderly over 65 years old, and patients with underlying diseases such as heart, lung, and kidneys, it is recommended to receive the flu vaccine every year.

Influenza (influenza for short) is an acute respiratory infection caused by influenza viruses, and it is also a highly contagious and fast-spreading disease. It is mainly transmitted through airborne droplets, person-to-person contact, or contact with contaminated items. Typical clinical symptoms are:

Sudden onset of high fever, generalized aches, significant fatigue, and mild respiratory symptoms. Autumn and winter are the peak periods, and the complications and deaths caused are very serious.

The virus belongs to the family Orthomyxoviridae, with a diameter of 80 to 120 nm, spherical or filamentous. Influenza viruses can be divided into three types: A (a), B (b) and C (c), and A-viruses often have antigenic mutations, are highly contagious, spread rapidly, and are prone to large-scale epidemics. Since the virus is airborne, it is the nose that bears the brunt of the attack.

The virus first infects the nasal mucosa and then multiplies, causing inflammation of the nasal mucosa, such as sneezing, runny nose and nasal congestion. The common cold is a "nasal cold" and its effects on the human body are usually limited to the respiratory system. All symptoms are related to the nose, such as nasal discharge, nasal congestion and sore throat, cough, and even fever.

Healing usually takes a few days.

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Wind-heat cold is mainly used to dispel wind and cold, and the commonly used drugs are cold and heat clearing powder, wind and detoxification capsules, cold capsules, etc.; Wind-heat cold is mainly a medicine for spicy and cool detoxification, which can effectively reduce the degree of fever, and the commonly used drugs are Yinqiaosan, Qinghe Jiedu Oral Liquid, Shuanghuanglian Oral Liquid, etc.

Influenza is an acute respiratory infection caused by influenza viruses. It is characterized by a short incubation period, rapid spread, and high morbidity, and the patient presents with sudden fever, sore throat, dry cough, fatigue, bulbar conjunctival redness, and muscle aches all over the body. Generally, the general malaise lasts for several days, and in severe cases, it can lead to viral pneumonia or secondary infection of the lungs.

For the elderly and infirm, influenza is a very threatening infectious disease, because it can not only cause fever and general malaise, but also easy to cause complications in patients, so that patients with pulmonary heart disease, coronary heart disease aggravated, and even lead to death. According to relevant reports, in the world's most recent influenza outbreaks, tens of millions of people have died from influenza.

Influenza epidemics have a distinct seasonality, mainly occurring in winter and spring. Its epidemic also has a certain regularity, generally forming a small epidemic in 3-5 years and a pandemic in 8-10 years. For the prevention and control of influenza, vaccines and drug prophylaxis are mostly used in the world.

The vaccine has a preventive effect on both influenza A and B, while the drug to prevent influenza, ashalalkamine, only has a preventive effect on influenza A. At present, the use of amantadine in China has been relatively common, that is, in the outbreak area of influenza A, all personnel are given the antiviral drug amantadine as a prophylactic dose, so that the scope of the epidemic is gradually narrowed, or even the epidemic is suspended. However, the use of influenza vaccine is not widely used in China.

Influenza is an acute respiratory disease caused by influenza A, B and C viruses respectively, and belongs to Class C infectious diseases.

Influenza is more common in winter and spring in China, and the clinical manifestations are mainly systemic poisoning symptoms such as high fever, fatigue, headache, cough, and muscle aches, while the respiratory symptoms are mild.

Influenza viruses are prone to mutation, highly contagious, generally susceptible to the population, and have a high incidence rate, causing many outbreaks in the world in history, and are an important public health issue of global concern.

Influenza is an acute respiratory infection caused by influenza virus infection, mainly influenza A virus and influenza B virus infection. Influenza viruses are mainly transmitted through droplets such as sneezing and coughing, through mucous membranes such as the mouth, nose, and eyes, direct or indirect contact with infection, as well as contact with items contaminated with the virus, etc., and may be transmitted through aerosols in crowded places, closed or poorly ventilated rooms.

Most of the influenza starts with fever, the onset is more acute, and the sudden appearance of high fever, the body temperature can reach 39-40, most people are accompanied by chills, chills, headache, dizziness, muscle and joint aches all over the body, fatigue, decreased appetite and other symptoms. Some patients will be accompanied by sore throat, dry cough, nasal congestion, runny nose, conjunctival hyperemia, etc., a small number of patients will be accompanied by gastrointestinal symptoms, such as nausea, vomiting, diarrhea, etc., and some patients will have mild symptoms or no symptoms at all. If there are no complications in flu patients, most of them can recover on their own, as long as they pay attention to rest, drink plenty of water, and eat a balanced diet, most patients will gradually drop their body temperature to normal after 3-5 days, and other symptoms will gradually improve.

However, cough and fatigue last for a long time, especially cough, which may last for weeks or even months in some people.

Epidemic ** viruses are referred to as influenza viruses. It is divided into three types: A (a), B (b), and C (c), and the bovine influenza virus that has only been discovered in recent years will be classified as D (D). Influenza virus can cause infection and morbidity in humans, poultry, pigs, horses, bats and other animals, and is the pathogen of human and animal diseases such as avian influenza, swine flu and horse influenza.

The typical clinical symptoms of these diseases are acute high fever, generalized aches, significant fatigue, and respiratory symptoms. Influenza viruses are mainly spread through airborne droplets, contact between susceptible people and infected people, or contact with contaminated items. Generally, autumn and winter are the peak periods.

**Infection is mainly caused by influenza A virus and influenza B virus. Influenza A viruses often undergo antigenic mutations, which can be further divided into subtypes such as H1N1, H3N2, H5N1, and H7N9 (where H and N represent the two surface glycoproteins of influenza viruses, respectively). Influenza viruses are not very resistant to the outside world.

Animal influenza viruses do not usually infect humans, and susceptible viruses do not usually infect animals, with the exception of pigs. Pigs can be infected with both susceptibility virus and avian influenza virus, but they are mainly infected with swine flu virus. A small number of animal influenza viruses can cause a first-induced pandemic after adapting to humans.

A virus, B virus, C virus, etc.

There are many kinds, what influenza A, flu B, all kinds.

Scientists in Italy have confirmed that lactoferrin can effectively prevent the replication of major influenza virus subtypes, and is expected to become a new generation of antiviral drugs that are effective against influenza!

Influenza is divided into influenza A and B flu.

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There are three types of influenza viruses associated with humans: influenza A virus, influenza B virus, and influenza C virus. Of the three, influenza A viruses are the most pathogenic, with the well-known Hin1, H5N1 and H7N9 being the most pathogenic.

The Spanish flu pandemic of 1918 and the swine flu of 2009 were caused by H1N1; The 2004 avian flu was caused by H5N1, and the 2013 avian flu became H7N9.

So what exactly are h and n here? H ha for hemagglutinin protein and N na for neuraminidase protein; HA and NA are proteins on the surface of the virus.

Since the epidemic of influenza is directly related to these two proteins, scientists named the H and N pairs of influenza viruses, which also gave them the above codenames.

How to understand the functions of h and n? H and N are like the two tentacles of a snail, and viruses can recognize the "infection gate" of human cells through these two "antennae", so as to achieve the purpose of invading the human body.

On the other hand, the proteins of the virus are only exposed to H and N, and the human immune system locates the virus by recognizing these two "tentacles". Common viral infections are generally self-limiting and will resolve spontaneously in about a week. It takes exactly a week for the immune system to go from recognizing the virus to producing antibodies against the virus.

For the common cold, our immune system is the best "cold medicine".

What are the types of influenza viruses?

There are four types of influenza A, B, C and D, and the influenza D virus host does not include humans. Influenza A and B are the predominant susceptible forms in humans. Influenza viruses are named H and N, there are 11 species of H and 18 species of N.

So theoretically, there are 198 kinds of influenza viruses, but only a few dozen have been discovered in practice. At the same time, it is important to note that the rest is not to say that all that is there is not been discovered. Among the parts that have not been discovered, there may be types that have not yet appeared and that cannot exist from unknown principles.