Early research from Canada suggests that, after one dose, the Moderna COVID-19 vaccine is 72% effective at preventing symptomatic COVID-19 virus caused by the delta variant. One dose of the vaccine is also 96% effective at preventing severe disease with the COVID-19 virus caused by the delta variant.

Do the current COVID-19 vaccines protect against the new variant?

• FDA-authorized COVID-19 vaccines help protect against Delta and other known variants.
• These vaccines are effective at keeping people from getting COVID-19, getting very sick, and dying.

Does the COVID-19 vaccine fight all strains of COVID-19?

The current COVID vaccines are our most powerful tool to fight all the strains of COVID-19.