The beginning of the new year. As soon as the first stream left, the second stream came again.
What is the situation of influenza surveillance in our province?
Hear from the Jiangsu Provincial Center for Disease Control and Prevention.
Institute for the Prevention and Control of Acute Infectious Diseases.
Chief Physician Dai Qigang's answer.
The proportion of influenza B in China has increased for 6 consecutive weeks, and the proportion of influenza B in Jiangsu has an obvious upward trend
This winter and spring,The influenza epidemic in Jiangsu has passed its peak, and the epidemic level of influenza has decreased compared with the previous period, but it is still at a moderate epidemic levelThe dominant strain in circulation is currently A(H3N2), it is worth noting that the recent B (Victoria lineage), that is, the B stream, the proportion of the composition of the proportion of the rise in our province is obvious, affected by the increase in the composition of the B stream, the proportion of outpatient and emergency fever upper respiratory tract cases and the number of influenza cases in the past two weeks have a certain **, combined with historical surveillance data and the epidemic characteristics of B (Victoria).It is expected that the positive composition ratio of B (Victoria) will continue to increase in the near futureThis may delay the decline of the seasonal peak of the current round of influenza and even cause fluctuations in the epidemic, and cause clusters of outbreaks in schools in some areas around the Spring Festival winter vacation**.
Pathogens of other respiratory infectious diseasesThe new crown is still at a low epidemic level in our provinceThe prevalence level of Mycoplasma pneumoniae is also gradually decreasing, and the results of multi-pathogen surveillance show that the current circulating respiratory pathogens are mainly influenza A virus and influenza B virus, in addition to a small number of adenovirus, respiratory syncytial virus, and metapneumovirus.
Is Yiliu the "king of kings"?
The pain all over my body was in the cracks of my bones
In the past two days, the number of searches for "B stream" in major browsers has soared
Netizens have left messages saying"Hit".
Is the B stream more powerful than the A stream?
Influenza A and influenza B are different types of influenza and are similarly contagious.
Influenza A is more likely to cause regional or even global pandemics due to its ability to genetically mutate, while influenza B mutates relatively slowly and usually causes only localized small outbreaks when it occurs.
In terms of clinical symptoms, overall,Influenza A causes a heavier burden of disease than influenza B, but the specific symptoms and course of infection vary from person to personTherefore, it is difficult to distinguish between influenza A and influenza B according to clinical manifestations, and it is still necessary to cooperate with laboratory tests to diagnose it.
If there are different types of influenza, will I be reinfected?
In general, there is a small chance of infection with the same subtype of influenza virus within a year. But influenza A and influenza B are two different subtypes of influenzaThere is no 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.
Approaching the end of the semester, what should children pay attention to in school and class prevention and control when they are stressed?
Primary and secondary schools are prone to influenza clusters due to their dense classrooms and relatively closed environments.
First of all, there is still a call for the student population to be vaccinated against influenza every year, based on surveillance data from recent years, we believeTrivalent influenza vaccine can effectively reduce the morbidity and mortality of influenza.
Second, the weather has been cold recently, and it is recommended that schools should use the time before and between classes to ventilate more, 2-3 times a day, and ventilate for half an hour each time.
Third, teachers and students with fever symptoms should not bring illness to class, and students who do not have a fever but have a cough should pay attention to cough etiquette in public, and it is best to wear disposable masks to reduce the spread of pathogens.
Finally, as the final semester is approaching, it is stressful to ensure adequate sleep and moderate exercise, which can also play an important role in improving immunity and preventing the flu.
*: Yangzhou CDC.
Editor: Gillian(Some of the content may be *** on the Internet, please contact us in time for the release of the manuscript fee).
