Parents of the child
Doctor, my child has a high fever of 40 ° C, vomiting and pulling, and stomach pain. It has been fever for a day and a half, the body temperature is up to 40 ° C, the body temperature can regress to normal after oral antipyretic drugs, and the body temperature rises again after 4 to 5 hours. The baby has fever with sore throat, mild cough, general aches, vomiting 3 times, diarrhea 2 times, and peri-umbilical pain. Routine white blood cells in fever clinics are not high, neutrophils are slightly higher, and CRP is normal.
Beijing Children's Hospital Shunyi Women's and Children's Hospital
Deputy Chief Physician of Pediatrics Liu Zongwen
Don't worry, it is estimated that the baby has B flow, let's do a flu test first.
The test results showed that the baby was positive for influenza B.
Liu Zongwen introduced that the incidence of influenza last winter increased compared with the previous year, and most of the children with a high fever of 39 to 40 ° C were influenza, most of which were influenza B.
What is B Stream?
Influenza (flu for short) is an acute respiratory infectious disease caused by influenza viruses. Influenza viruses can be divided into A (A), B (B), C (C) three types, and the main causes of human influenza are type A and B.
Influenza A and B viruses circulate seasonally each year, with influenza A viruses causing a global pandemic.
What is the manifestation of B stream?
Influenza mainly with fever, headache, myalgia and general malaise, body temperature up to 39 ~ 40 ° C, can have chills, chills, with the whole body muscles and joints soreness, fatigue, loss of appetite and other systemic symptoms, often have sore throat, dry cough, can have nasal congestion, runny nose, retrosternal discomfort, flushing, conjunctival congestion and so on.
Some patients have mild or no symptoms.
In addition to the above-mentioned influenza manifestations, 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 B flow transmitted?
1 Droplet propagation at close range. In general, flu patients spew droplets when they talk, cough, and sneeze, carrying a large amount of influenza virus. If a healthy person faces him face to face, or is only a meter or two away, he is vulnerable to influenza B virus.
2 Indirect contact transmission. If you come into contact with surfaces contaminated with influenza viruses, such as toys, tabletops, doorknobs, and then use your hands to touch your eyes and nasal mucosa, you can also cause infection.
3 Transmission in the form of aerosols may also occur in certain places, such as densely populated and airtight or poorly ventilated rooms.
How is B flow treated?
Anti-influenza virus therapy should be given as early as possible (within 48 hours of onset) and if onset is longer than 48 hours, symptoms do not improve or tend to worsen.
At present, the commonly used neuraminidase inhibitors (NAI) are effective against both influenza A and B, and the commonly used neuraminidase inhibitors (NAI) are oseltamivir (oral), paramivir (infusion), and zanamivir (nebulization).
In addition to the above antiviral treatment, there are also symptomatic treatments such as antipyretic, cough, antiemetic, antidiarrheal and other symptomatic treatments.
How is B flow prevented?
1 Get flu shot. Influenza vaccination is the most effective means of preventing influenza and can significantly reduce the risk of influenza and serious complications in vaccinated people. Usually around October of each year is the best time for vaccination.
2 Drug prophylaxis. Pharmacological prophylaxis is not a substitute for vaccination. Post-exposure pharmacoprophylaxis is recommended for close contacts with high factors in severe influenza (who have not been vaccinated or have not acquired immunity after vaccination), and do not take the drug no later than 48 hours after exposure. Prevention is usually done with oseltamivir or zanamivir.
3 Take protective measures and maintain good personal hygiene. Wash your hands frequently, ventilate frequently, and keep the environment clean and hygienic. Minimize activities in crowded areas and avoid contact with people with respiratory infections. When coughing or sneezing, cover your mouth and nose with your upper arms or tissues, towels, etc., wash your hands after coughing or sneezing, and try to avoid touching your eyes, mouth or nose. People with symptoms of influenza-like respiratory infection should be isolated at home, pay attention to rest, and seek medical treatment as soon as possible.
4 Exercise to enhance physical fitness and self-resistance.
Contributed by: Liu Zongwen, Department of Pediatrics, Shunyi Women's and Children's Hospital, Beijing Children's Hospital