At present, it is in the high incidence season of influenza. Xiaobian learned from many hospitals that among the patients in the fever clinic, the number of patients with influenza B has exceeded that of influenza A. In children's hospitals, most of the children with high fever of 39 ℃ to 40 ℃ are influenza, and most of them are influenza B. What are the symptoms of B flow? Once the child is recruited, how can he be cared for and treated? Today, please ask the pediatrician to talk to you. "Doctor, my child has a high fever of 40 ℃, vomiting, diarrhea and stomachache." The parents of the children said anxiously. After inquiry, the baby has had fever for a day and a half, and the maximum temperature is 40 ℃. After oral antipyretic drugs, the temperature can return to normal, and the temperature rises again 4 to 5 hours later. Accompanied by sore throat, mild cough, body pain, vomiting 3 times, diarrhea 2 times, periumbilical pain. The blood routine examination in the fever clinic 1 day ago showed that the white blood cells were not high, the neutrophils were slightly high, the CRP was normal, and the typical manifestation of influenza B. "Don't worry, the baby is estimated to have stream B. let's have a flu test first." The results showed that it was positive for influenza B. What is stream B? Influenza (influenza) is an acute respiratory infectious disease caused by influenza virus. Influenza viruses can be divided into three types: a (a), B (b) and C (c). The main causes of human influenza are type A and type B. Influenza A and B viruses are seasonal every year, among which influenza A virus can cause a global pandemic. What is the performance of stream B? Influenza mainly starts with fever, headache, myalgia and general discomfort. The body temperature can reach 39 ℃ to 40 ℃. It can have chills, chills, accompanied by systemic symptoms such as muscle and joint pain, fatigue and loss of appetite. It often has sore throat, dry cough, stuffy nose, runny nose, discomfort behind sternum, flushing face and conjunctival congestion. Some patients have mild or asymptomatic symptoms. In addition to the above manifestations of influenza B, some children also have gastrointestinal symptoms such as nausea, vomiting, abdominal pain and diarrhea, and some children are accompanied by calf muscle pain. How is stream B transmitted? First, influenza B can be transmitted through close droplets. Generally, influenza patients carry a large amount of influenza virus through the droplets sprayed when talking, coughing and sneezing. If a healthy person is face-to-face or close to him, such as within 2 meters, it is easy to be infected with B virus. At the same time, the power of indirect contact transmission should not be underestimated. If you touch the surfaces of objects contaminated by influenza virus, such as toys, desktops and door handles, and then touch your eyes and nasal mucosa with your hands, you will also cause infection. In addition, it may also be transmitted in the form of aerosols in specific places, such as crowded, closed or poorly ventilated rooms. How to treat the second stream of children with stroke? Anti influenza virus treatment should be given as soon as possible (within 48 hours of onset). If the onset time exceeds 48 hours and the symptoms do not improve or tend to deteriorate, anti influenza virus treatment should also be given. At present, commonly used neuraminidase inhibitors (NAI) are effective for influenza A and B. commonly used neuraminidase inhibitors (NAI) include oseltamivir (oral), pramivir (infusion) and zanamivir (atomization). In addition to the above antiviral treatment, there are symptomatic treatments such as antipyretic, cough, vomiting and diarrhea. How to resist the second stream? Influenza vaccination influenza vaccination is the most effective means to prevent influenza, which can significantly reduce the risk of influenza and serious complications. Generally, the best vaccination time is about October every year. Drug prophylaxis cannot replace vaccination. It is suggested that close contacts with high-risk factors of severe influenza (in short, age < 5 or ≥ 65, obesity, pregnant women, people with chronic basic diseases, and not vaccinated with influenza vaccine) should be given post exposure drug prevention. It is recommended not later than 48 hours after exposure. Oseltamivir or zanamivir are generally used for prevention. Take protective measures and maintain good personal hygiene habits. Wash hands and ventilate frequently to keep the environment clean. Try to reduce activities in crowded places and avoid contacting people with respiratory tract infections. When coughing or sneezing, cover your mouth and nose with your upper arm or paper towel, towel, etc. wash your hands after coughing or sneezing, and try to avoid touching your eyes, mouth or nose. Those with flu like respiratory tract infection symptoms should be isolated at home, pay attention to rest and seek medical treatment as soon as possible. Exercise and scientific exercise can enhance your physique and increase your resistance. (outlook new era)