In September 2019, Yu Hongjie's team from the School of Public Health of Fudan University, in conjunction with the Chinese Center for Disease Control and Prevention and the University of Hong Kong, published a paper in the journal "The Lancet Public Health" of the Lancet journal:

2025/04/2315:25:37 hotcomm 1915

Summary

Influenza Viral infection may not only lead to respiratory-related death, but may also exacerbate potential chronic diseases (such as cardiovascular disease) by triggering or to cause death.

The most amazing thing about : Injecting influenza and pneumonia vaccines in the elderly can not only prevent influenza, but also reduce the risk of Alzheimer's disease .

Influenza (referred to as influenza) is an acute respiratory infectious disease that seriously endangers human life, health and safety. Autumn and winter are the peak period of influenza, and many cities have started the free influenza vaccination of in many influenza vaccine . (Take Beijing as an example, the free influenza vaccination is for the elderly over 60 years old and primary and secondary school students in school. The vaccination time will last until November 30. )

The immune system capacity of the elderly is declining, which is prone to physical health damage due to influenza complications and even affecting life safety. In September 2019, the paper published by the Chinese Center for Disease Control and Prevention in the journal Lancet Public Health showed that in , there are nearly 90,000 flu-related excess respiratory deaths in China every year, 80% of which are elderly people aged 60 and above. In addition, influenza virus infection may also lead to death by triggering or exacerbating potential chronic diseases (such as cardiovascular disease).

Influenza vaccine reduces the risk of cognitive symptoms

Influenza and pneumonia vaccines can not only prevent colds and pneumonia, but also prevent Alzheimer's disease. reported several latest studies at the Alzheimer's International Conference on Chicago in the United States on July 27, 2020, showing that influenza vaccines and pneumonia vaccines can effectively reduce the risk of Alzheimer's .

Houston Texas Health Science Center McGovern Medical School analyzed the medical health information of 9066 subjects in the U.S. health records data set. People who were vaccinated had a 117% lower risk of Alzheimer's disease than those who did not. is vaccinated regularly every year, which can reduce the risk rate of Alzheimer's disease by 13% on this basis. The earlier the vaccine is injected, the better the prevention of Alzheimer's disease. The researchers compared people who received the vaccine for the first time at the age of 60 and 70, and found that html people who started receiving the first flu vaccine at the age of 160 had a lower risk of Alzheimer's disease .

Influenza vaccine reduces the risk of heart disease and chronic diseases

vaccine is not only related to the reduced risk of Alzheimer's disease, but the American Heart Association report also shows that influenza vaccine for people over 50 years old can reduce their risk of heart attack by 28% , the risk of ischemic heart disease or stroke is reduced by 47%, the risk of cardiac arrest is reduced by 85%, and the mortality rate related to heart disease is reduced by 73%.

study shows that more than one-third of patients who seek medical treatment due to heart disease between 2008 and 2015 did not receive the flu vaccine the previous year. In addition, older people with heart disease, lung disease and diabetes are at a higher risk of influenza. Elderly people with these chronic underlying diseases are prone to other complications caused by influenza, which increases the risk of hospitalization and even leads to death.

Why does influenza affect heart disease or other underlying diseases? One of the main reasons is that influenza increases the body's stress, causing blood pressure to rise and heartbeat to rise. Medical data show that heart disease patients have a six times more likely to have a heart attack within one week after they have suffered from the flu. At the same time, heart patients are more likely to experience influenza complications, such as pneumonia and respiratory failure.

How long can the protective effect of the influenza vaccine last?

Many times, when talking about vaccines, some people may say, "I have received the vaccine once." Vaccines such as measles and diphtheria may provide long-term protection for the human body, but influenza vaccines are not as long-term as we imagined.An article published in "Science" on August 13 stated that the protective effect provided by the flu vaccine only lasts for about one year.

People are vaccinated to hope that the human body will have an immune response to vaccine-related viruses and form antibody serum to protect the human body. This latest study found that because bone marrow plasma cells can maintain the human body's long-term serum antibody levels. Four weeks after inactivated seasonal influenza injection, the number of bone marrow plasma cells increases, and the body can indeed develop immunity to influenza. A year later, the human body's anti-influenza level returned to the level before the vaccine injection.

virus is constantly mutating, and vaccines also need to be updated continuously. The protective properties of vaccines to the human body will vary from year to year. From 2009 to 2019, the effectiveness of human body protection ranged from 19% to 60%. The reason is related to the characteristics of the influenza virus itself. The influenza virus develops and changes too quickly. When the type of influenza targeted by the vaccine does not match the rapidly developing influenza virus, it is easy to ineffective the vaccinated vaccine. How often does

get vaccinated for the best effect? The CDC of the US Centers for Disease Control and Prevention recommends that middle-aged and elderly people should try to get seasonal influenza vaccine once a year. Currently, many cities in China provide free flu vaccines for the elderly, and everyone can actively participate.

In addition, the protective effect of the vaccine is due to the population effect. Not only should the flu vaccine be administered every year, but it is best for the whole family to get vaccinated together. Individuals, the protection of vaccination is fixed. If one more person is vaccinated, each person will have a smaller risk of infection because herd immunity is increased.

It should be noted that vaccines can only be used as a means of prevention, and it is not that you will definitely not get sick after getting vaccinated. Vaccination does not mean treatment. For any disease, prevention and treatment need to complement each other and take effect together.

Reference link

.https://www.sciencedaily.com/releases/2020/07/200727114726.html

.http://www.mind.uci.edu/commentary-on-flu-and-pneumonia-vaccination-and-reduced-risk -of-alzheimers-dementia/

.https://www.dailymail.co.uk/health/article-8565131/Pneumonia-vaccine-reduce-risk-developing-Alzheimers-40-study-finds.html

.https://doi.org/10.1016/S2468-2667 (19) 30163- X

Unnamed Brain says

Middle-aged and elderly people are vaccinated with influenza and pneumonia, which can not only prevent colds and pneumonia, but also prevent Alzheimer's disease.

It is recommended that middle-aged and elderly people receive seasonal influenza vaccine once a year.

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Unknown Brain and Brain

focuses on popular science of brain cognitive science, brain health and mental health. The creative team comes from University Berkeley , University Pennsylvania , University Pennsylvania , University Peking University , Tsinghua University , Beijing Normal University , Capital Medical University and other master's doctoral students.