How long does immunity last after you get vaccinated?

Protection from most vaccines lasts a long time.

While we are detecting waning immunity, or protection that wears off sooner than expected for some vaccines, most provide long-lasting, even lifetime protection.

Waning immunity is a problem for the mumps and acellular pertussis vaccines.

We have also always known that tetanus requires regular boosters for good protection and that you need to get a flu vaccine each and every year, even when flu strains in the vaccine don’t.

Immunity from most other vaccines lasts a long time and doesn’t wane or decrease over time.

For More Information On Waning Immunity:

• The problem of waning pertussis immunity
• Ask the Experts about Pertussis Vaccines (DTaP, Tdap)
• Mumps vaccine effectiveness and waning immunity
• Pertussis vaccine waning effectiveness – the facts
• Duration of Protection, Efficacy and Effectiveness
• Report – How advances in immunology provide insight into improving vaccine efficacy
• Study – Duration of Humoral Immunity to Common Viral and Vaccine Antigens
• Vaccine immunology

• Vaccine Misinformation