Shanghai Lida College 2024-01-25 09:36 Shanghai.
Recently, there has been a general cooling down across the country.
Popular** risk,Respiratory diseases are common.
On the main issues that everyone is concerned about.
Dada will answer them one by one.
What are Stream A and B?
Influenza is divided into four types: A, B, C, D, among which influenza A and B are the most prevalent and easily transmitted, which is why it spreads on a large scale among people in autumn and winter. Influenza A and B viruses are more likely to mutate and produce new strains of influenza viruses. Therefore, people of different ages are at risk of infection, and the infection rate is extremely high.
Influenza A (H1N1) (influenza A)., is made ofInfluenza A virusacute respiratory infections caused by them; Influenza B (influenza B for short)., is made ofInfluenza B(b) viruscaused by the epidemic ** risk. Symptoms of influenza A and B are usually much worse than those of the common cold. Influenza A and B are more contagious and more infectious. On top of that, viruses A and B are prone to mutation, cross-infection between animals and humans, and are more pathogenic.
aWhat is the transmission route of influenza B?
It is transmitted through droplets such as sneezing and coughing, and through direct or indirect contact with mucous membranes such as the mouth, nose, and eyes.
Spread through contact with items contaminated with the virus.
Relatively closed places with poor air circulation are transmitted in the form of aerosols.
Symptoms of influenza A
The prevalence of influenza A is high, and patients will have symptoms such as high fever, cough, runny nose, myalgia, and some patients will also have pneumonia, heart failure, and kidney failure. Influenza A affects older patients more severely, and elderly patients may have serious complications after being infected with the influenza A virus, and may also lead to the aggravation of diabetes, cardiovascular and cerebrovascular diseases and other diseases. Influenza A is not very friendly to older people with underlying medical conditions.
Symptoms of influenza B
Infected children often have fever (body temperature up to 39 40), headache, muscle aches, general weakness, loss of appetite and other systemic symptoms, accompanied by cough, sputum, nasal congestion, runny nose, sore throat and other respiratory symptoms. Gastrointestinal symptoms such as nausea, vomiting, abdominal pain, and diarrhea are more pronounced than those of influenza A. The sick children are mainly concentrated in the school-age stage, and most of them are infected in clusters, and the children in the lower age group are mainly infected by other family members because of the limited activity space.
Tips for dealing with suspected infection
Reduce the number of baths during the fever, and now that the weather is cold, the body suddenly catches a cold when the heat comes out, which is easy to aggravate the discomfort.
It is necessary to eat, ensure nutrient intake, and improve the body's resistance in order to recover better and faster.
Drink plenty of water, drink warm water, your throat will be very comfortable, and it can also help detoxify and sweat.
Get plenty of rest, go to bed early, and don't stay up late!
Reduce contact with the outside world to avoid being infected by other new viruses, which will lead to the superposition of viruses and increase the discomfort and difficulty.
It is recommended to wear a mask when going out every day to reduce the risk of infection.
If you feel unwell, you must go to the hospital as soon as possible to diagnose the condition and prescribe the right medicine, and do not blindly use medicine.
a, the infectious stage of influenza B
Phase 1:It usually lasts 1-3 days, and the symptoms are mild, similar to the common cold, so it is difficult to tell if you have influenza A.
Phase 2:It usually lasts 3-5 days and the symptoms are more pronounced. At this time, there will be high fever, sore throat, nausea, abdominal pain, etc.
Stage 3:It usually lasts 1-2 weeks and symptoms begin to resolve, but you may still feel weak and tired. At this time, do not let your guard down, and be sure to do a good job of protection to prevent secondary infection.
What is the difference between B and A?
Influenza A and influenza B are both similarly contagious, but influenza A is more likely to cause more severe epidemics due to its ability to genetically mutate. Of course, the specific symptoms and course of infection vary from person to person. Staying up to date with your flu vaccine is important to prevent both types of flu.
There is little difference between the symptoms of influenza A and influenza B, and it is difficult to distinguish according to clinical manifestations, and it is still necessary to cooperate with tests to diagnose it. It is especially reminded that influenza B is caused by viruses, and antibiotics such as penicillin and cephalosporin that we commonly use are drugs against bacteria and are useless for influenza B, so it is not recommended that you use antibiotics without authorization as soon as you have a fever.
Will I be reinfected if I have influenza A or influenza B?
Influenza A and influenza B are two different subtypes of influenza that do not have a cross-immune mechanism. After influenza A or B infection, if the patient is relatively weak, there is still a chance of infection with another subtype of influenza virus.
In general, there is a small chance of infection with the same subtype of influenza virus within a year. For example, if the A(H3N2) subtype of influenza A virus is currently prevalent, and the patient will have immunity to this type of virus after infection, the probability of reinfection with the same type of virus within one year is small. However, because influenza A viruses mutate easily, people who have not been vaccinated may be reinfected with other subtypes of influenza A viruses.
In recent years, because the influenza B virus has not mutated much, the spread range is relatively small, and the probability of reinfection with influenza B within one year is also small.
How to prevent nails, B stream
Tip 1: Healthy lifestyle
It plays a vital role in the prevention of influenza
Eat a balanced diet
Eating more foods rich in vitamins and minerals can effectively strengthen our immune system and make us more able to resist the invasion of viruses. For example, citrus, strawberries, and broccoli, which are rich in vitamin C, as well as zinc-rich foods such as nuts and seafood, all have immune-boosting effects.
Get enough sleep
Getting enough sleep is essential for maintaining a healthy immune system. Adults typically need 7 to 8 hours of sleep per night to ensure that the body can recover and rebuild.
Moderate amount of exercise
Walking, jogging, or swimming for 30 minutes a day can significantly improve the body's ability to fight off disease.
Cut down on going to crowded places
Avoiding crowded gatherings or events during flu season can significantly reduce the chances of exposure to and transmission of the virus.
Wash your hands frequently and wear a mask
Washing your hands frequently, especially after touching public places, is an effective way to remove viruses from your hands. Wearing a mask when necessary, especially on public transport or in crowded settings, can further reduce the risk of spreading the virus through the air.
The second trick: get a flu shot
We can get the flu vaccine before the flu season, which can prevent influenza A and influenza B at the same time, and the chance of people who have been vaccinated will be greatly reduced, effectively preventing influenza.
In simple terms, the flu vaccine prepares our body to fight the real flu virus when it hits by simulating a viral infection and inducing the body to develop an immune response. But the flu virus is a rapidly mutating enemy that emerges in a different form every year. As a result, scientists need to update their flu vaccines every year to fight the most likely circulating strains of influenza virus. Our flu vaccines typically target several of the most likely circulating strains of the virus, providing patients with comprehensive protection.
The third trick: use antiviral drugs as prescribed
OseltamivirAntiviral drugs such as zanamivir are powerful tools against influenza. Once flu symptoms appear, you can start taking it within 48 hours under the guidance of your doctor to minimize symptoms. For people with weak immunity, such as the elderly and some special patients, there are also precedents for medication prevention according to the doctor's instructions. During a 2009 influenza A epidemic in Singapore, it was reported that the index of transmission was reduced from 1 by administering oseltamivir to those involved91 down to 011。
Therefore, it is feasible to prevent influenza A with drugs, but not everyone needs to take preventive drugs, and ordinary people must use them with caution under the professional guidance of doctors.
The weather has changed drastically lately.
However, students still pay attention to controlling the indoor temperature.
Avoid alternating hot and cold that may cause discomfort.
Similarly, once you find yourself unwell.
It is advisable to seek medical attention as soon as possible and in a timely manner**.
Bless you all. Everything went smoothly and I was in good health.
end
part of the **creative**network).
Manuscript |Chen Yihao.
Edit |Guo Yunhong.
Guidance: Zhang Jiehua, Gong Guanyu, Dong Jinglin.
Audit |Zhang Pengnian.