FDA Authorizes Moderna, J&J Booster Shots, ‘Mix and Match’ Approach

Vocational nurse Christina Garibay displays a syringe with Johnson & Johnson's Janssen Covid-19 vaccine at a Skid Row community outreach event where Covid-19 vaccines and testing were offered in Los Angeles, California on August 22, 2021. (Photo by Frederic J. BROWN / AFP) Photo by FREDERIC J. BROWN/AFP via Getty Images

The Food and Drug Administration (FDA) on Wednesday authorized booster shots for Moderna and Johnson & Johnson vaccines for certain eligible populations, adding that people can take a different vaccine brand than the ones they'd taken originally.

The booster campaign for those aged 65 and over and those at high risk aims to increase protection against COVID-19 amid signs that vaccine efficacy decreases over time.