The announcement comes two months after the Russian leader touted "registration" of what was billed as the world's first SARS-CoV-2 vaccine. But neither drug has completed large-scale human trials.
Pediatricians have been asking policy makers to include children in COVID-19 vaccine trials. Now, the FDA has given Pfizer approval to enroll adolescents as young as 12 years old.
"The first question is, is the vaccine safe? Frankly, I'm not going to trust the federal government's opinion," Democratic Gov. Andrew Cuomo said at a news conference.
Volunteers getting the shot help determine if a candidate vaccine works. But what with social distancing and masks, scientists must discern if it's the shot or these other measures preventing illness.
A large study of a COVID-19 vaccine candidate has been put on hold after one of the volunteers became ill.
The pledge comes one month after a survey found that only 2 in 5 Americans said they planned to get vaccinated against COVID-19.
The CDC's planning guidance for states includes multiple scenarios for the rollout of a vaccine this year, including possibly having a limited number of doses available in October and November.
If the company's vaccine candidate pans out, Americans can receive it for free under the deal. The arrangement is part of the U.S. government's push to have a vaccine widely available by January.
Testing in more than 1,000 people found the vaccine spurred an immune response and had no severe side effects. Larger trials are underway.