In an appearance on the TODAY show, Azar outlined what he said would be the distribution schedule for Pfizer’s and other companies’ experimental vaccines, none of which are approved, but Pfizer said Monday its vaccine is over 90 percent effective at preventing coronavirus infection.

Azar said the pharmaceutical giant is ramping up to deliver 20 million doses of its coronavirus vaccine monthly by the end of November.

Azar forecasted that there would be enough of the vaccine to inoculate at-risk nursing home residents, health care workers and first responders by the end of January and that there should be “enough for all Americans by the end of March to early April to have general vaccination programs.”