Does the COVID-19 vaccine lose its effectiveness over time and should it be taken annually like the flu shot?

At KPRC 2, we want to keep Houstonians informed. As part of our Ask 2 series, the newsroom will answer your questions about all the things Houston has to offer.

Question: Does the COVID-19 vaccine lose its effectiveness over time and should it be taken annually like the flu shot?

Answer:. According to the Centers for Disease Control and Prevention (CDC), experts are still studying how long immunity is triggered.

FULL COVERAGE: Follow the latest vaccine news in our special section

Vaccines produced by Pfizer-BioNTech and Moderna have been approved by the FDA for emergency use authorization. Both vaccines require recipients to receive two doses, 21 days apart, to achieve a maximum efficacy of approximately 95%.

According to senior medical correspondent, dr. John Torres, of NBC News, expects immunity to last several years; however, more research needs to be done to determine the longevity of its effectiveness.

Do you have a burning H-Town related question? Send it to our side, and we will try to find an answer.