The high dose flu vaccine is a stronger influenza vaccine specifically formulated for people aged 65 and older. Unlike standard flu shots, it contains four times the antigen amount to trigger a more solid immune response.
The high dose flu vaccine works by introducing higher levels of antigens, which are the parts of the virus that prompt the immune system to produce antibodies. These antibodies help protect against influenza infection. The increased antigen level aims to overcome the weaker immune response common in older adults.
There are two primary high dose flu vaccines approved for use in the U.S.:
| Vaccine Name | Manufacturer | Key Feature |
|---|---|---|
| Fluzone High-Dose | Sanofi Pasteur | Contains four times the antigen level of standard doses |
| Fluad | Seqirus | Includes an adjuvant to improve immune response |
Both vaccines are designed to provide better protection for seniors, who are more vulnerable to severe complications from the flu.
The Centers for Disease Control and Prevention (CDC) recommends that all adults aged 65 and older receive the high dose flu vaccine or another senior-specific flu vaccine. This recommendation is based on research showing that older adults benefit from the enhanced protection offered by these vaccines.
According to the CDC, adults in this age group are at higher risk for serious flu complications, such as pneumonia, bronchitis, sinus infections, and worsening of chronic medical conditions. The high dose flu vaccine aims to reduce these risks.
One common misconception is that the high dose flu vaccine causes more side effects than the standard vaccine. While it may cause slightly more local reactions like soreness at the injection site, studies have shown that systemic side effects, such as fever or body aches, are similar between the high dose and standard vaccines.
Another myth is that the high dose flu vaccine is only necessary for those with weakened immune systems. In reality, the CDC recommends it for all seniors, regardless of their health status, because aging naturally weakens the immune response to vaccines.
You can receive the high dose flu vaccine at most flu vaccine clinics, pharmacies, and healthcare provider offices. It's important to get vaccinated annually, as the flu virus changes each year, and protection from the previous year's vaccine may not be effective against new strains.
The high dose flu vaccine is a important tool in protecting seniors from the potentially severe impacts of influenza. By understanding how it works, who should get it, and where to find it, older adults can make informed decisions about their health and stay protected during flu season.