Is it necessary to get a flu vaccine?

Feb 10, 2025 Source: Cainiu Health

Dr. Ren Yi

Introduction

It is necessary for most people to receive the influenza vaccine. Even if vaccinated individuals become infected with the influenza virus, their risk of developing severe symptoms and complications is lower. Especially for populations with weaker immune systems, such as children, the elderly, pregnant women, and women planning to become pregnant, the risk of infection with the influenza virus is higher, and serious complications may occur after infection.

Under normal circumstances, it is necessary to receive the influenza vaccine. However, individuals who have allergies to the vaccine or have contraindications for vaccination should avoid receiving the flu shot. If there are any concerns, it is recommended to consult a healthcare professional in advance. Detailed explanation is as follows:

Most people should receive the influenza vaccine, as even if vaccinated individuals become infected with the influenza virus, their risk of developing severe symptoms and complications is lower. Especially for individuals with weaker immune systems, such as children, elderly individuals, pregnant women, and women who are planning to become pregnant, the risk of contracting the flu virus is higher, and infection may lead to severe complications. Influenza vaccination can effectively reduce the likelihood of infection and alleviate flu symptoms, thereby reducing the incidence of complications.

However, individuals who are allergic to vaccines should avoid receiving the influenza vaccine. If a person is allergic to any component of the influenza vaccine, vaccination may trigger a severe allergic reaction, which could even be life-threatening. If an individual currently has an acute illness, such as fever, upper respiratory infection, diarrhea, or is experiencing an acute exacerbation of a chronic illness, or has abnormal mental status, vaccination is generally not recommended. The individual should first receive treatment and consider vaccination only after recovery.

To effectively prevent influenza, it is recommended to receive the current seasonal flu vaccine 1–2 months before the flu season begins each year. Additionally, during peak flu season, in addition to vaccination, other preventive measures should also be taken, such as wearing masks, washing hands frequently, and avoiding crowded places, to reduce the risk of infection.

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