Is Annual Flu Vaccination Necessary for Your Health? - Family Medicine

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Is it necessary to get the flu vaccine every year?


Hello, Doctor: My boyfriend is 36 years old and works as an engineer in a tech company.
The company offers a benefit where a limited number of employees can register each year for a free flu vaccine (Fluarix Tetra).
He has been trying to secure a spot for the vaccine every year for about four years, except for last year when the flu vaccine was paused due to the COVID-19 vaccinations.
Previously, he didn't think much about getting vaccinated; he just felt that since it was free, he might as well take it, especially since paying out of pocket can be quite expensive, so I never discouraged him.
However, since the emergence of the COVID-19 vaccine, I've started to hear many claims that "vaccines are toxic," and I began to worry whether the flu vaccine might also be a form of toxin.
Additionally, my boyfriend's health has been declining in recent years, and I'm unsure if it's due to his long working hours or the annual flu vaccinations.
I would like to ask you, Doctor: My boyfriend, who is 36 years old, occasionally experiences low blood pressure and palpitations, but he is mostly normal.
Does he really need to get the flu vaccine every year? Could continuing to receive the flu vaccine annually actually harm him? Should I support him in continuing to register for the flu vaccine each year? (The type of vaccine provided for free by the tech company is Fluarix Tetra, and regarding the COVID-19 vaccine, he has received three doses of BNT).
Thank you for taking the time to read this lengthy message and for your detailed response.

Ni Ni, 30~39 year old female. Ask Date: 2023/10/24

Dr. Lin Zhebin reply Family Medicine


Hello: 1.
Vaccines do not work by using disease to combat disease; rather, they stimulate the body to develop immunity against pathogens, thereby reducing the risk of infection and preventing severe illness following infection.
2.
The influenza vaccine has been administered for over a decade, and its safety and efficacy are generally well-established.
Your boyfriend's declining health should not be attributed to receiving the influenza vaccine annually.
3.
Given your boyfriend's age and the absence of any specific chronic illnesses, he is not considered to be in a high-risk group for influenza infection and subsequent severe complications.
While vaccination is not strictly necessary, it is still recommended if he wishes to lower his risk of infection.

Reply Date: 2023/10/24

More Info


Annual flu vaccination is a topic of considerable importance, especially in the context of public health and individual well-being. Your boyfriend's situation, as a 36-year-old engineer who has been receiving the flu vaccine annually, raises several pertinent questions regarding the necessity and safety of such vaccinations.

Firstly, it is essential to clarify that vaccines, including the flu vaccine (Fluarix Tetra), are not "poisons" or harmful substances. Instead, they are designed to stimulate the immune system to recognize and combat specific pathogens, thereby reducing the risk of infection and severe illness. The notion of "fighting poison with poison" is a misconception; vaccines work by training the immune system to respond more effectively to real infections.

Regarding the flu vaccine's safety and efficacy, extensive research has demonstrated that flu vaccines are generally safe for the vast majority of individuals. The flu vaccine has been administered for decades, and its safety profile is well-established. Common side effects are typically mild and may include soreness at the injection site, low-grade fever, or fatigue. Serious adverse reactions are exceedingly rare.

As for your boyfriend's declining health, it is unlikely that the annual flu vaccinations are the direct cause. Factors such as work-related stress, long hours, and lifestyle choices can significantly impact overall health. Low blood pressure and palpitations, while concerning, are not typically linked to flu vaccinations. It would be prudent for him to consult a healthcare provider to evaluate his symptoms and overall health status comprehensively.

In terms of whether he should continue receiving the flu vaccine annually, the Centers for Disease Control and Prevention (CDC) recommends that everyone aged six months and older receive the flu vaccine each year, particularly those who may be at higher risk for complications from influenza. While your boyfriend does not have chronic health conditions that place him in a high-risk category, annual vaccination can still be beneficial in reducing the likelihood of contracting the flu and experiencing its potentially severe complications.

Moreover, the flu virus can mutate from year to year, which is why annual vaccination is necessary. Each year, the vaccine is formulated to protect against the most prevalent strains of the virus. By getting vaccinated, your boyfriend is not only protecting himself but also contributing to community immunity, which is especially important for those who may be more vulnerable to severe illness.

In conclusion, it is advisable for your boyfriend to continue receiving the flu vaccine annually, especially since it is provided for free by his employer. This decision can help mitigate the risk of influenza and its complications. However, it is equally important for him to maintain a healthy lifestyle, manage stress, and seek medical advice for any concerning symptoms he may experience. Supporting him in these endeavors will be beneficial for his overall health and well-being.

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