The COVID-19 outbreak may rebound this month! Just after the influenza A virus was cured, the influenza B virus came again. The continuous infection is true →

January 14

The National Health Commission held a press conference

Invite relevant experts to introduce

Prevention and treatment of respiratory diseases in winter in my country

Health tips

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COVID-19 outbreaks may rebound this month

The JN.1 variant is likely to become the dominant strain in my country

Wang Dayan, director of the National Influenza Center of the Institute of Viral Diseases of the Chinese Center for Disease Control and Prevention, introduced that recent data from the multi-channel monitoring system showed that the national COVID-19 epidemic was still at a low level after the New Year's Day holiday. Among them, the positive rate of COVID-19 detection in sentinel hospitals remained below 1%, and the proportion of JN.1 variants showed an upward trend. Experts believe that China will continue to show a trend of alternating or co-epidemic of multiple respiratory pathogens, and influenza viruses will still be the main ones in the short term. Affected by multiple factors such as the continuous importation of JN.1 variants from abroad, the gradual reduction of domestic influenza activity and the decline in the immune level of the population, the COVID-19 infection epidemic may rebound this month, and the JN.1 variant is likely to develop into the dominant epidemic strain in China.

The number of patients admitted to fever clinics nationwide showed a fluctuating downward trend

Medical services are generally stable and orderly

Mi Feng, spokesperson for the National Health Commission, said that since New Year's Day, the number of patients admitted to fever clinics in medical institutions across the country has fluctuated and declined. The current respiratory diseases are still dominated by influenza, and the novel coronavirus infection is at a relatively low level. Medical services are generally stable and orderly.

As the winter and Spring Festival holidays approach, large-scale movement and gathering of people may accelerate the spread of respiratory diseases. We must do a good job in monitoring and early warning, strengthen the management of key places and key links of prevention and control. Provide health consultation and referral guidance services to key groups such as the elderly, pregnant women, children, and patients with chronic basic diseases in a timely manner, and provide convenient conditions for them to get vaccinated.

Medical resources should be actively deployed, the medical treatment process should be optimized, and the supply of medical supplies should be guaranteed. Medical resources should be reserved for sports injuries, accident injuries, cardiovascular and cerebrovascular emergencies, etc., which are common during the holidays, to ensure that patients receive timely and effective treatment.

After infection with influenza A

Is it possible to be infected with influenza B in the near future?

China CDC responds

Wang Dayan, director of the National Influenza Center of the Institute of Viral Diseases of the Chinese Center for Disease Control and Prevention, introduced that seasonal influenza includes influenza A (H1N1), influenza A (H3N2) and influenza B. my country's southern provinces have entered this influenza season since early October, and northern provinces have entered this influenza season since late October. In the early stage, influenza A (H3N2) subtype was the main epidemic strain. In the past five weeks, the proportion of influenza B viruses in northern provinces has continued to rise to 57.7%, and in the past three weeks, the proportion of influenza B viruses in southern provinces has continued to rise to 36.8%. In some provinces, the proportion of influenza B viruses exceeds that of influenza A viruses.

Influenza A and B viruses are distinguished by the sequence characteristics of their genes and proteins. The seasonal influenza caused by them is difficult to distinguish in clinical symptoms. If you want to distinguish and identify influenza A and B viruses, you need to rely on pathogen typing tests, such as nucleic acid tests and antigen tests.

In the same influenza season, different types and subtypes of influenza viruses usually co-circulate, but in different proportions. **The immune response produced after contracting influenza A cannot provide effective immune protection against influenza B. In other words, even if you have contracted influenza A during this season, you may be infected with influenza B again. **Currently, influenza vaccines contain influenza A H1N1 subtype, influenza A H3N2 subtype and influenza B components. It is recommended that high-risk groups receive influenza vaccines as soon as possible.

No cross-immunity between different respiratory pathogens

May be infected simultaneously or alternately

In response to the reporter's question, if you have had respiratory diseases such as influenza A or B, will you be infected again? Will repeated infection aggravate the condition? What kind of people are recommended to take oseltamivir?

Wang Guiqiang, director of the Department of Infectious Diseases at Peking University First Hospital, said that winter is a high-incidence season for respiratory diseases, including influenza A, influenza B, the new coronavirus, respiratory syncytial virus, adenovirus and mycoplasma. **The immunity established after infection with these pathogens is not lasting and can be repeatedly infected. **At the same time, these pathogens have no cross-protective immunity and can be infected at the same time or alternately.

Repeated infections within a short period of time often make the condition milder because the immunity established by the infection still exists; however, simultaneous infection with different pathogens may lead to worsening of the condition, especially when the respiratory immune barrier is damaged and the risk of bacterial infection increases, especially for the elderly, young children and patients with underlying diseases.

It is recommended that when symptoms of upper respiratory tract infection occur, differential diagnosis should be carried out in a timely manner, and antigen or nucleic acid testing should be performed. After a clear diagnosis, targeted treatment can be given. For example, for influenza, anti-influenza virus drugs such as oseltamivir or mabaloxavir can be used. The elderly, children, and patients with underlying diseases should use anti-influenza drugs at an early stage. If it is a new coronavirus infection, anti-new coronavirus drugs should be used early to relieve symptoms, shorten the course of the disease, reduce the risk of severe illness and hospitalization, and reduce the risk of further transmission.

Are young patients with cardiovascular disease at higher risk of sudden death?

Expert: There is currently no epidemiological data to support

Liu Qingquan, director of Beijing Hospital of Traditional Chinese Medicine, said that when the human body encounters cold, the sympathetic nerves become excited, blood vessels constrict, the heart rate increases, and blood pressure rises, which can easily induce cardiovascular disease. For patients who already have cardiovascular disease, it can easily cause a recurrence or aggravation of the disease, or even sudden death.

Experts say there are many causes of sudden death, but sudden cardiac death accounts for more than 80% of all sudden deaths, and coronary heart disease and myocardial infarction are the main causes of sudden cardiac death. Sudden death can occur at any age, and there is no epidemiological data to support whether young cardiovascular patients have a higher risk of sudden death. Existing research data shows that more men than women suffer from sudden cardiac death, and the older you are, the higher the risk of sudden cardiac death.

But we do need to pay attention to the increasing risk of cardiovascular disease in young people. Obesity, high blood lipids, high blood sugar, and high uric acid are very common among young people. In addition, compared with the elderly, young people are busy with work and tend to neglect their health. Even if the signs of disease occur, they often do not pay attention to it or seek medical treatment. Delayed treatment often leads to the development of the disease.

National Health Commission:

Cross-border tourism between the north and the south is booming

Remind tourists to pay attention to health protection

Mi Feng, spokesperson for the National Health Commission, said that since the New Year's Day holiday, cross-border tourism between the north and the south has become popular, and tourists from the south and the north have fully experienced the different natural environments and cultural atmospheres. The climate in the north and the south is very different, so we should pay attention to the weather changes and road safety at the destination and along the way, pay attention to our health, pay attention to keeping warm, be careful of frostbite and colds, and prevent slipping and falling.

Pay attention to food hygiene during the trip. Continue to adhere to good hygiene habits such as wearing masks scientifically, washing hands frequently, ventilating frequently, and maintaining social distance. If respiratory symptoms occur, identify them promptly and seek medical treatment in a timely manner.

People with certain body types are more afraid of cold

Chinese medicine experts:

It is a state of yang deficiency and can be improved by daily maintenance

Liu Qingquan, director of Beijing Hospital of Traditional Chinese Medicine, said that people with certain constitutions are more afraid of cold than their peers, especially in autumn and winter, and more obvious in young and middle-aged women. From the perspective of TCM theory, this is a state of yang deficiency, but not a disease state. If the disease occurs due to various reasons, it is very easy to transform into a yang deficiency syndrome, which can be improved by daily maintenance, such as reducing the intake of cold drinks and raw and cold foods, especially in spring and summer, "nourishing yang in spring and summer". In fact, nourishing in autumn means eating more warm yang foods such as mutton, ginger, pepper, etc. Strengthening moderate exercise, exercise can make the body's yang move, which is beneficial to changing the body's state.