Flu shots only work around 70 per cent of the time

Flu shots only work around 70 per cent of the time.

Flu season is a difficult time for many individuals around the world. The influenza virus spreads rapidly, causing symptoms such as fever, cough, sore throat, and body aches. To prevent getting sick, many people turn to flu shots as a preventive measure. However, it is important to understand that flu shots are not foolproof. They only work around 70 per cent of the time.

According to a study conducted by the Centers for Disease Control and Prevention (CDC), the effectiveness of flu shots varies from year to year. The vaccine is designed to protect against the most common strains of the influenza virus expected to circulate during the flu season. However, due to the constantly evolving nature of the flu virus, there is always a chance that the circulating strains may be different from those included in the vaccine.

The effectiveness of flu shots depends on various factors. One important factor is the level of match between the vaccine and the circulating strains of the influenza virus. If the match is strong, the vaccine will provide better protection. However, if the match is weak, the effectiveness of the vaccine decreases.

Another factor that affects the effectiveness of flu shots is an individual’s immune response. Some people have a stronger immune response to the vaccine, resulting in better protection against the flu. On the other hand, certain demographic groups, such as the elderly and those with weakened immune systems, may have a less effective immune response to the vaccine.

It is essential to note that even though flu shots may not provide perfect protection, they still offer many benefits. Firstly, they can help reduce the severity of symptoms in individuals who get infected despite being vaccinated. Additionally, flu shots contribute to herd immunity, which protects vulnerable populations who cannot receive the vaccine, such as infants and individuals with certain medical conditions.

To maximize the effectiveness of flu shots, it is recommended to get vaccinated annually. Since the flu virus evolves, the vaccine is updated each year to ensure it includes the strains expected to circulate during the upcoming flu season. Therefore, getting a flu shot every year is crucial for staying protected against the most current strains of the virus.

In conclusion, flu shots are not 100 per cent effective, but they are still a valuable tool in preventing the flu. With an effectiveness rate of about 70 per cent, flu shots can significantly reduce your risk of getting sick and minimize the severity of symptoms if you do get infected. It is important to remember that as the flu virus continues to evolve, yearly vaccination remains the best strategy to stay protected during flu season.