C.D.C. Tells States How to Prepare for Covid-19 Vaccine by Early November

The guidance noted that health care professionals, including long-term care employees, would be among the first to receive the product, along with other essential workers and national security employees. People 65 or older, as well as Native Americans and those who are from “racial and ethnic minority populations” or incarcerated — all communities known to be at greater risk of contracting the virus and experiencing severe disease — were also prioritized in the documents.

That’s a positive development, “so it doesn’t just all wind up in high-income, affluent suburbs,” said Dr. Cedric Dark, an emergency medicine physician at Baylor College of Medicine in Texas.

The C.D.C. noted in its guidance that “limited Covid-19 vaccine doses may be available by early November 2020.” The documents were dispatched the same day that Dr. Robert Redfield, director of the C.D.C., sent a letter to governors asking them to prepare vaccine distribution sites by Nov. 1, as McClatchy reported.

The agency also said its plans were as yet hypothetical, noting, “The Covid-19 vaccine landscape is evolving and uncertain, and these scenarios may evolve as more information is available.” A C.D.C. spokeswoman confirmed that the documents were sent but declined to comment further.

Many of the details listed for the two vaccines — including required storage temperature, the number of days needed between doses, and the type of medical center that can accommodate the product’s storage — match what Pfizer and Moderna have said about their products, which are based on so-called mRNA technology. Neither company responded to requests for comment.

The scenarios, which assume that the two vaccines will demonstrate sufficient safety and effectiveness for an emergency authorization from the F.D.A. by the end of October, noted that Vaccine A, which seems to match Pfizer’s, would have about two million doses ready within this time frame, and that Vaccine B, whose description matches Moderna’s, would have about one million doses ready, with tens of millions of doses of each vaccine ready by the end of the year. Although it’s possible that some promising preliminary data may emerge by the end of October, experts are skeptical.

“The timeline that’s reported seems a bit ambitious to me,” Dr. Dark said. “October’s like 30 days away.”