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Why are those who have the flu vaccine more resistant to the corona virus? – Health News

Could the flu vaccine protect against Covid-19? The reason why this problem is on the agenda again, American Journal of Infection Control’An article published as well with surprising results.

Researchers at the University of Michigan in Michigan before July 15, 2020 Covid-19 examined the data of 27 thousand 201 people who had the test. 12 thousand 997 of them were previously flu shot had happened.

Among those who got the disease in the results, the proportion of those who got the flu vaccine was lower than those who were not vaccinated: 4 percent instead of 4.9 percent.

At first glance, it seems that there is no significant difference, but this rate means that people who have the flu vaccine are 24 percent less likely to get Covid-19.

Another result of the study is that people who had the flu vaccine and had the disease had less need for hospitalization and respiratory equipment than the group who was not vaccinated.

In addition, although the hospitalization periods of those who had previously had the flu vaccine were shorter on average, no significant difference was observed between the death rates in both groups.

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So what is the medical and microbiological explanation for these results? These results are, for example, congenitally induced by the flu vaccine. immune defense can also be.

The innate immune defense functions independently of learned antibody immunity and specifically targets the spike proteins that cause Covid-19. Here the body reacts not against a specific virus, but against infections in general.

Our immune defense system includes, for example, cells that can absorb and destroy foreign substances entering the body, and proteins that play a role in various immune reactions and inflammatory processes. It is known that the immune defense systems of people who have had some vaccines, such as measles vaccine, also improve.

Epidemiological studies show that vaccinated children have higher immunity to various pathogens than unvaccinated children, even long after vaccination.


However, just by looking at these results, it would not be correct to say that the flu vaccine definitely protects against Covid-19; because there are factors that cannot be ignored. For example, people who have recently had the flu vaccine, described in the risk group, the elderly, and people with health problems.

Since these people are more careful than unvaccinated people, it cannot be ignored that they do not get Covid-19. However, there are still people in the risk group who have caught Covid-19 in the study in question. Although it is known that Covid-19 disease is generally more severe in the elderly, this was not the case for those who had the flu vaccine in the University of Michigan research.


Another study published last year that has not yet gone through a referee process points to an immunological explanation: Before the 2019/2020 flu season, Dutch hospital workers with the flu vaccine were significantly less likely to catch Covid-19 than those without the vaccine.

None of these groups had individuals over the age of 70; All those studied were actively working and were in serious contact with the affected people as a result.



So, looking at these results, can we say that it is necessary to get a flu shot right away? Research indicates that more research is needed on the role of the innate immune system in Covid-19.

On the other hand, there are still some uncertainties about the results of these studies. Taking your own precaution against Covid-19 should not be the driving force behind getting a flu shot. However, as the flu can also be life-threatening, it is recommended by doctors to be vaccinated. The best time to get the vaccine is often described in autumn, just before flu season.

If you really want to boost your immune system, you should check your overall vaccination status with your doctor and draw up a comprehensive vaccination plan.

Make sure you have all recommended vaccines and boosters against dangerous diseases such as mumps, measles, rubella, tetanus, polio, diphtheria, whooping cough, tuberculosis, smallpox, hepatitis A and B.


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