The proportion of B flow continues to rise! Adults and children have been recruited one after another, and some people call it ＂pain in the bones.＂

After mycoplasma pneumonia and swine flu

Recently, B-stream has attracted public attention again.

Some people are online.

I shared the process of my cold and fever:

Persistent high fever

Muscle and joint aches all over the body.

Continued fatigue after turning negative.

Some netizens also said:

"B flow is Wang Zhongwang.

It hurts all over the body until it hurts in the bones. "

01

B-stream is on the rise in both north and south.

The weekly report of the 52nd week of 2023 (from December 25th, 2023 to December 31st, 2023) released by the National Influenza Center of China on January 4th shows that although influenza A is still the main stream, the proportion of influenza B is rising, and it has been rising for nine consecutive weeks in the north, from 4.2% in the 44th week to 47.3% in the 52nd week. South China has been rising for six consecutive weeks, from 11.6% in the 47th week to 26.4% in the 52nd week.

Source: China News Network

02

What are the symptoms of B-stream?

1. Simple type: There will be high fever, headache, fatigue, loss of appetite and other manifestations, and a few may have symptoms such as cough, stuffy nose, dry throat and hoarseness. Generally, the body temperature reaches the highest value in 1 ~ 2 days, gradually decreases in 3 ~ 4 days, and the symptoms gradually improve after fever.

2, gastrointestinal type: mainly manifested as vomiting, abdominal pain, diarrhea, loss of appetite and other manifestations.

3. Pneumonia type: The patient has persistent high fever, shortness of breath, cyanosis, hemoptysis, extreme fatigue and even respiratory failure.

4, poisoning type: high fever, convulsions and other systemic toxemia may occur, and in severe cases, shock or even death may occur.

Compared with A-stream, B-stream usually has a smaller outbreak range and a lighter illness. For some mild patients with strong immunity and good health, they can recover on their own.

Why does infection with B-stream hurt in the bone seam?

In fact, some people have bone headaches, whether in COVID-19 before, or in A-stream and B-stream.

Lin Hua, deputy chief physician of the Department of Respiratory Medicine, Xiangya Third Hospital, Central South University, said that patients with upper respiratory tract infectious diseases caused by rhinovirus, adenovirus, influenza virus and other pathogenic bacteria may have systemic aches and fatigue.

When pathogenic bacteria enter the body, it will destroy immunity and release inflammatory mediators, such as prostacyclin, which will spread all over the body with blood circulation. When used in bones, it will lead to bone headaches for patients. In addition, pathogenic bacteria can cause skeletal muscle spasm and contraction. If it stimulates the peripheral central nervous system, some patients will also have a bone headache, so they will have a bone headache.

03

What’s the difference between stream B and stream A?

Influenza (including influenza A and B) mainly manifests as systemic symptoms, such as high fever and sore muscles, while respiratory symptoms such as runny nose and cough will be lighter. Fever is persistent, and it often burns again after taking antipyretics for a few hours.

influenza A virus

influenza B virus

incubation period

1~3 days, up to 7 days.

Usually 1~4 days.

temperature

The body temperature is high, generally exceeding 39 C.

High fever persists, exceeding 39 C.

symptom

Muscle ache accompanied by dizziness, headache, diarrhea, vomiting and other symptoms or some of them, respiratory symptoms are mild or not obvious.

Mental malaise, mild respiratory symptoms, dry throat, sore throat, dry cough and other symptoms, sometimes accompanied by vomiting and diarrhea.

It should be reminded that there is little difference between the symptoms of A stream and B stream, so it is difficult to distinguish them according to clinical manifestations, and it is still necessary to cooperate with tests to diagnose them.

At the same time, I would like to remind you that B-stream is caused by virus. Antibiotics such as penicillin and cephalosporin we usually use are drugs against bacteria, which are useless for B-stream. Therefore, it is not recommended that you use antibiotics without authorization when you have a fever.

04

Don’t put off two things after being infected with B stream.

1. Take anti-influenza drugs as soon as possible, and don’t delay.

There is no difference between B stream and A stream in treatment, mainly using anti-influenza drugs, which can shorten the course of disease. Take the medicine as soon as possible. If you take it late, you will either get well or turn into a serious disease, and the curative effect will be greatly reduced.

Blocking virus replication at the early stage of flu symptoms has the best effect, and antiviral treatment within 48 hours can get the best effect. More than 48 hours after gold, antiviral drugs can also benefit. It is recommended to take the medicine according to the doctor’s instructions.

Note: Patients with pulmonary diseases or immunodeficiency, diabetic patients, obese patients, pregnant women, including dialysis patients, etc., are advised to go to the hospital as soon as possible.

2. Be sure to rest in time, don’t put it off.

In December 2023, a 14-year-old B-stream patient admitted to a hospital in Zhejiang Province, in just over a month, she "rotated" mycoplasma pneumonia, A-stream and B-stream. The doctor said that repeated infection with mycoplasma, A stream and B stream in a short period of time is related to low immunity and failure to recover from rest.

In addition, the measures to prevent influenza are basically the same as those to prevent COVID-19, such as avoiding going to crowded and closed places; The home environment should be ventilated frequently; Wear a mask when going out, wash your hands frequently, etc.: "We must continue to do a good job of protection, and we must not relax our vigilance." ▲

05

Cangzhou CDC influenza network laboratory

The first batch of influenza virus isolated from chicken embryos was successfully obtained.

The influenza network laboratory of the Municipal Center for Disease Control and Prevention has set up a number of sentinel sites in major hospitals in our city, which belongs to the national influenza detection network and undertakes the task of detecting and reporting influenza viruses in our city. Since 2017, the laboratory has used influenza viruses extracted from major hospitals to carry out the experiment of "isolating influenza viruses by chicken embryo culture" to provide antigens for the development of national influenza vaccines.

Recently, in the first batch of influenza virus isolation work of 100 eggs, they successfully obtained the strain and sent it to the provincial CDC. Now, they are involved in the new influenza virus isolation work, carefully cultivating the second batch of 50 eggs.

Original title: "The proportion of B flow continues to rise! Adults and children have been recruited one after another, and some people call it "pain in the bones".

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