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Can the flu vaccine stop the new crown experts from saying this?
“The flu vaccine cannot prevent new coronavirus infection. It is completely different from the new coronavirus.” Wang Dayan, director of the CDC’s National Influenza Center, made it clear that the flu vaccine only targets the influenza virus and not only does not protect against the new corona, but also against other respiratory tract with similar symptoms. Infectious diseases have no preventive effect.
However, vaccination against influenza will indirectly support the fight against the new corona epidemic. From November 1 to 2, during the 2020 World Influenza Conference, experts in the prevention and control of infectious diseases explained to the public one by one.
The flu vaccine cannot protect against the new coronavirus
“I want to clarify with ordinary people that the flu vaccine can only prevent influenza.” Wang Dayan emphasized that the new coronavirus and the influenza virus are completely different.
Influenza (flu) is caused by the influenza virus and new coronary pneumonia is caused by the new coronavirus.
Although the two viruses are viruses, it can be said that the difference is tens of thousands of kilometers. The genes and proteins that make up the two viruses are very different. Wang Dayan explained that the nucleic acid of the new coronavirus is a large genome with a single chain and a long length; the influenza genome is 8 segments.
If it is difficult to remember, it can be understood as: the new coronavirus is like “independent bulk delivery”, while the influenza virus is “single order delivery”. There will be a variety of combinations in the “spelling list”. According to the data records: 3 of the 8 segments of the Asian influenza virus (H2N2) gene circulating in 1957 are from Duck influenza virus and the remaining 5 segments are from H1N1 Human influenza virus.
The difference of the virus determines the difference of the vaccine. Most influenza vaccines are inactivated vaccines, the raw material is a large quantity of artificially grown influenza viruses that render them inactive. The vaccines are produced through strict production and verification processes. The inactivated vaccine in the new corona vaccine has the same principle, and the raw material is the new artificially grown coronavirus.
The point is here: Inactivated vaccines produced from two completely different viruses have no chance of “sharing” at all.
Is the Flu Vaccine Less COVID-19? There May Be 3 Reasons
Vaccination against influenza will indirectly support the fight against the new corona epidemic. Feng Luzhao, a researcher at the Chinese Academy of Medical Sciences and Peking Union Medical College and executive vice president of the School of Mass Medicine and Public Health, gave three reasons.
“Influenza and COVID-19 are respiratory infectious diseases. Their symptoms are very similar. There is no way to differentiate and diagnose them at an early stage. You have to go to a medical institution for treatment. If there are patients with COVID-19 at At the same time, the risk of contracting COVID-19 also increases, “said Feng Luzhao. From one perspective, vaccination against influenza can reduce the risk of acquiring a new infection in the crown in public places and medical institutions.
In addition, if there are few patients with fever, the relevant institutions do not need to treat the suspected cases of the new crown and carry out the corresponding management work, so it is actually about reducing the burden of visits or hospitalizations in medical institutions .
In the absence of the new corona epidemic in previous years, medical institutions often operate at full capacity in winter and spring, so reducing the incidence of influenza has a good protective effect on the medical system.
The first investigations also showed that the influenza virus and the new coronavirus have co-infection, and the synergy of the two parts will lead to an increase in the proportion of severe cases. Prevent influenza from a person’s point of view, prevent the occurrence of coinfection, and reduce the risk of serious illness once infected.
Attention! Vaccination against influenza can reduce the risk of infection in medical institutions without having to go to the hospital; second, it can help maintain the proper functioning of the public health protection system and the medical system; and third, it can reduce the risk of infection in medical institutions. Just be afraid of anything ”to prevent the flu and new corona co-infection from getting worse.
Flu season is “heating up”, in fact, this trick works better
During the 2020 World Influenza Conference, infectious disease prevention and control experts brought a lot of new news and advice.
1. Small epidemics of other infectious respiratory diseases cannot be ignored. Wang Dayan said that some people caught colds around National Day, but not all were flu, some were caused by rhinovirus and some were caused by bacteria.
2. Influenza activity is currently relatively low. Wang Dayan said this year’s flu epidemic is currently at a low level. A single piece of data can give a more specific situation. Recently, influenza surveillance network laboratories in various locations have analyzed more than 8,000 influenza-like samples each week, and only 3-5 have detected influenza viruses.
3. The flu season has not yet started and good hygiene and social habits should still be maintained. Based on past years’ experience, influenza activity generally begins to slowly increase in November and there will be a significant increase in December. There will be a peak around January and then it will slowly decrease.
“Currently, influenza activity is relatively low. A very important reason is that everyone has done a good job of prevention and control.” Wang Dayan said, “Social vaccines (such as frequent hand washing, wearing masks, keeping your distance)” and other measures are not only for influenza, but also for other respiratory infections. Disease prevention and control are also very effective.
Our reporter Zhang Jiaxing
