KYW Medical Report: How long do vaccines last?

PHILADELPHIA (KYW Newsradio) — The measles vaccine offers lifelong protection, but vaccines meant to prevent illness last variable amounts of time.

The chickenpox vaccine, for example, lasts about 10 to 20 years, and tetanus just 10 years. The flu vaccine usually lasts about six months, and we are already seeing a need to get COVID-19 boosters.

The reason is that the COVID-19 vaccines are designed to lessen the severity of symptoms. They also can help slow down the spread and prevent easily acquired infection.

Put in the simplest terms, COVID-19 vaccines essentially give a person the protection as if they were infected naturally, but without the potentially devastating impact.

​​KYW Newsradio’s Medical Reports are sponsored by Independence Blue Cross.