Moncef slaoui, head of the U.S. government's new crown vaccine program, said on Sunday,Because the new crown vaccination process in the United States is far behind the target, U.S. health officials are considering a way to speed up vaccination - to give low-risk people half the dose of the vaccine.
He said that one way to speed up the new crown vaccination is to give some people two and a half doses of Moderna vaccine.
"We know that for people between the ages of 18 and 55, a half dose of Moderna vaccine can double the number of vaccinated people, and we know that a dose of 100 micrograms can cause the same immune response."
"So we're in discussions with Moderna and the FDA, and it's up to the FDA, of course, to speed up the half dose of the vaccine," he added
The U.S. government's goal is to vaccinate 20 million Americans by the end of 2020, but only about 4.2 million people had been vaccinated by January 2, according to the U.S. Centers for Disease Control and prevention.