The Food and Drug Administration (FDA) has come under pressure to fully approve the Pfizer-BioNTech as well as Moderna vaccines as a new surge of coronavirus infections is ripping through much of the United States.
The two vaccines have been under emergency authorization since December.
“We cannot comment on specific timing” for full approval for the Pfizer vaccine, a spokesperson for the FDA said in a statement.
“As we have said, our ongoing review of the biologics license application for the Pfizer-BioNTech Covid-19 vaccine is moving forward as rapidly as possible in keeping with the high-quality complete assessment that the public expects from the FDA,” the spokesperson added.
By receiving the final approval, the US administration seeks to increase inoculation rates via gaining the people’s trust at a situation when the highly transmissible Delta variant of the coronavirus is relentlessly rising in the country.
Meanwhile, US President Joe Biden had previously announced that he expects Covid-19 vaccines could get full approval "quickly."
"They're not promising me any specific date, but my expectation, talking to the group of scientists we put together... plus others in the field, is that sometime, maybe in the beginning of the school year, at the end of August, beginning September, October, they'll get a final approval," Biden said.
The US has surpassed 36 million recorded Covid-19 cases and experts maintain that the worst is yet to come.
The country is now averaging a daily caseload of about 70,000, according to data from the Centers for Disease Control and Prevention (CDC). Almost 630,506 people have died from the virus in America.