Influenza A subtype H3N2 is still the dominant influenza virus
Type A is a topic of concern for many friends, and mastery of scientific norms of prevention is especially important for protecting their own health. Currently, there is an overall upward trend in acute respiratory infections in China. Wang Kai, a researcher at the China Center for Disease Control and Prevention of Viral Diseases, explained that the flu is an acute respiratory infection caused by the influenza virus, the population is generally susceptible to the influenza virus, and when severe can lead to pneumonia, heart disease, stroke, etc.
complications, and some people can develop into seriousness, seriousness and even death after infection with the flu. The National Health Commission held a press conference on the topic of ventilation and hygiene on Thursday, inviting the relevant teams to respond to the public's concerns on issues such as flu prevention and control. Currently, a total of 17 provinces across the country have a high level of influenza activity, while the rest of the provinces are at a mid-pandemic level.
Influenza virus subtype H3N2 continues to dominate the epidemic, accounting for more than 95%, with a small number of concurrent outbreaks of H1N1 and B influenza viruses. According to the latest monitoring, the country is expected to reach a peak in mid-December. The number of outbreaks of this pandemic season is significantly higher than the previous one.
It is noteworthy that this trend also reflects to some extent the transformation of the concept of industry services. Patients with one or more chronic illnesses; residents and employees of meeting places such as nursing homes, long-term care facilities, welfare facilities; pregnant women; children under the age of 5 years; family members and caregivers of infants and toddlers under the age of 6 years; populations of priority places such as kindergartens, secondary schools, medical institutions, and control centres. Combined with flu epidemic situations and multi-disease prevention strategies, priority recommendations focus on and high-risk populations who receive flu vaccines.
Influenza infections are the main source of infection among people with hidden flu infections, from late incubation to acute. In addition to preventing infection, the risk of serious illness can also be reduced by getting the flu vaccine as early as possible in health care facilities with immuno-vaccinated outpatients. In most cases, the fever gradually subsides after 3-5 days of illness, and the overall clinical performance improves, but it often takes longer for the cough to recover.
The flu mainly starts with fever, headache, musculoskeletal pain and other conditions, with a fever of up to 39 to 40 degrees Celsius, accompanied by sore throat, dry cough, nasal congestion, dizziness, dizziness, chills, shortness of breath, and decreased appetite, and some patients have mild clinical or no clinical symptoms. After infection with the flu, the clinical manifestations are lighter and can be rested at home, but if there is a high fever above 39 °C, if the use of anti-inflammatory drugs does not work well, or if there are severe clinical manifestations such as severe coughing, shortness of breath, chest pains, dizziness, severe headaches, frequent vomiting, confusion, etc. , it is necessary to seek timely medical attention.
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