WASHINGTON -- The Trump administration is asking states to speed up approval for vaccine distribution sites by Nov. 1, the latest sign the federal government is eager to get a vaccine out before the end of the year.
Centers for Disease Control and Prevention Director Robert Redfield urged state governors to remove barriers to building permits for distribution sites for use by McKesson Corp. and the drug wholesaler's subsidiaries, according to an Aug. 27 letter. The Dallas-based company has a deal with the federal government to distribute a coronavirus vaccine when it becomes available.
"CDC urgently requests your assistance in expediting applications for these distribution facilities, and, if necessary, asks that you consider waiving requirements that would prevent these facilities from becoming fully operational by Nov. 1, 2020," read the letter from Dr. Redfield to the states.
The administration has been pushing for a coronavirus vaccine. Food and Drug Administrator Stephen Hahn said in a recent interview with the Financial Times that an emergency authorization for a vaccine could be appropriate even before the vaccine has completed Phase 3 clinical trials.
An FDA vaccine advisory committee will meet Oct. 22 to discuss the development, authorization and licensing of vaccines to prevent Covid-19.
The CDC also provided documents to states outlining some of the most detailed descriptions to date of a vaccine rollout plan
The agency said vaccines would either be approved as licensed vaccines or under emergency-use authorization and would likely require two administrations.
"Vaccine and ancillary supplies will be procured and distributed by the federal government at no cost to enrolled Covid-19 vaccination providers, " the documents state.
They also state that jurisdictions must be prepared to immediately vaccinate identified critical populations when the earliest Covid-19 vaccine doses are available.
A screening tool on the CDC website will help individuals determine their eligibility for a vaccine and direct them to a vaccine finder.
One scenario described the availability of about two million doses by the end of October and another 10 million to 20 million doses available by the end of November, according to the documents sent to states.
The Trump administration has prioritized a vaccine through an initiative it has dubbed Operation Warp Speed, and the Department of Health and Human Services has said it is preparing to launch a November public-awareness campaign across TV, radio and social media, focusing on vaccine safety, efficacy and patient hesitancy.
Dr. Hahn's comments and the push to set up distribution sites by Nov. 1 has concerned some public-health experts who worry a vaccine could be rushed because of political pressure before it is determined to be fully safe. Election Day is Nov. 3, though many voters will have cast their ballots by mail well before that date.
Trump administration officials have pushed back on the criticism, saying Americans can trust the vaccine process.
"We all recognize that the public will have confidence in our decisions only if they are supported by the science. My personal commitment is to assure that all decisions meet FDA's standard. The patient and the public always come first," Dr. Hahn tweeted on Tuesday.
The administration on Tuesday ramped up its messaging on the safety of a vaccine. HHS Secretary Alex Azar and Dr. Moncef Slaoui, chief adviser to Operation Warp Speed, issued a release saying the optimistic target for a safe and effective vaccine is no later than January 2021.
"While one can never guarantee success in any scientific endeavor, it is now becoming increasingly likely we will deliver this historic victory for the American people and the world," they said in the release.
The administration this week said it won't join an international vaccine effort because it is co-led by the World Health Organization. President Trump has criticized WHO, saying it is too beholden to China.
Some public-health leaders have said the decision could mean the U.S. would have trouble getting vaccine doses if another country develops a successful vaccine more quickly. It also puts more pressure on the U.S. to develop a vaccine.
McKesson, one of the world's largest drug wholesalers, said last month that it would be a centralized distributor of future Covid-19 vaccines and the supplies needed to administer vaccinations.
"Vaccines and related supplies will be delivered to point-of-care sites across the country at the U.S. government's direction," the company said in an Aug. 14 press release.
National distribution plans call for prioritizing front-line health workers and people especially vulnerable to more severe symptoms of Covid-19.
Three vaccines are in Phase 3 clinical trials in the U.S. They are an AstraZeneca PLC vaccine developed with Oxford University, a vaccine from Moderna Inc., and a candidate from Pfizer Inc. and German-based BioNTech SE.
Thirty-five percent of Americans said they wouldn't get a free FDA-approved vaccine if it were ready, according to a poll released Aug. 7 by Gallup. Four in 10 nonwhite Americans and nearly half of Republicans said they wouldn't get vaccinated, while Democrats were more likely to say they would.
--Jared Hopkins contributed to this article.
Write to Stephanie Armour at stephanie.armour@wsj.com
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Word on the street is may be MONTHS before vaccine trials continue. I sure hope that’s wrong. 
