The administration of President Donald Trump has told state officials to prepare for a coronavirus vaccine to be ready for distribution beginning Nov. 1, according to the letter sent to governors.

In a letter to governors dated Aug. 27, Robert Redfield, director of the Centers for Disease Control and Prevention (CDC), said states “in the near future” will receive requests for permits from McKesson Corp., which has a contract with the CDC to distribute vaccines, including to state and local health departments, and hospitals.

Redfield told Yahoo Finance that authorities were preparing “for what I anticipate will be a reality, that there will be one or more vaccines available to us in November, December.”

James S. Blumenstock, a senior vice president for the Association of State and Territorial Health Officials, said the CDC was offering “an aggressive but necessary schedule,” but that public health agencies were mobilizing to prepare detailed plans.

It is a new sign that the race to apply the vaccine has been launched at full speed in the United States with the purpose of guaranteeing the health of the population, the safe return to work, schools and boost the country’s economy.

Health authorities are quickly preparing to launch a “large-scale distribution of the COVID-19 vaccine by fall 2020,” Redfield stressed in his letter.

Trump assured last week that his country would have access to the vaccine “this year.” The United States has invested millions of dollars in guaranteeing the COVID-19 vaccine before the end of the year.