Read more on how boosters work and why they're important.

By uclahealth • March 14, 2022

Is there a difference in effectiveness?

By Sandy Cohen • January 20, 2022

70% of the immune system is located in the gut, where diverse bacteria is best

By Sandy Cohen • March 19, 2021

Ask the Doctors answer their monthly letters column regarding the coronavirus vaccine

By Ask the Doctors • March 17, 2021

Is there a potential dead end for the Covid-19 contagion? Read here.

By uclahealth • June 17, 2020

Dear Doctor: If I received the flu shot in September, am I still protected from the flu in March?   That's a very good question – and the answer depends, in part, on your current health. The flu season normally [...]

By Ask the Doctors • May 14, 2018

Dear Doctors: My daughter had the chicken pox vaccine as a child, so never had chicken pox. She’s now an adult. Should she get a booster? That’s an excellent question. The chicken pox (Varicella) vaccination has been widely used in the [...]

By Ask the Doctors • April 14, 2018