Since the Omicron wave crested in January, multiple studies and datasets have demonstrated that the mRNA vaccines are not nearly as effective against this variant as they were against earlier variants or the original virus.

Friday April 22, 2022 12:00-12:30 ET Join experts from the Johns Hopkins Coronavirus Resource Center (CRC) at 12pm ET on Fridays for timely, accessible updates on the state of the pandemic and the public health response.

According to the CDC, Pfizer-BioNTech or Moderna COVID-19 vaccine boosters are preferred for individuals who received the single-dose Johnson & Johnson shot.

The coronavirus is continuing to stalk the world at an astonishing clip, racing past a grim succession of pandemic milestones in 2022.