WASHINGTON (AP) — Drugmaker Moderna requested the Food and Drug Administration on Thursday to authorize a fourth shot of its COVID-19 vaccine as a booster dose for all adults.

The request is broader than rival pharmaceutical firm Pfizer’s request earlier this week for the regulator to approve a booster shot for all seniors.

In a press launch, the corporate mentioned its request for approval for all adults was made “to provide flexibility” to the Centers for Disease Control and Prevention and medical suppliers to find out the “appropriate use” of a second booster dose of the mRNA vaccine, “including for those at higher risk of COVID-19 due to age or comorbidities.”

US officers have been laying the groundwork to ship extra booster doses to shore up the vaccines’ safety in opposition to severe illness and dying from COVID-19. The White House has been sounding the alarm that it wants Congress to “urgently” approve extra funding for the federal authorities to safe extra doses of the COVID-19 vaccines, both for added booster pictures or variant-specific immunizations.

US well being officers at the moment advocate a major collection of two doses of the Moderna vaccine and a booster dose months later.

Moderna mentioned its request for a further dose was based mostly on “recently published data generated in the United States and Israel following the emergence of Omicron.”

On Tuesday, Pfizer and its accomplice BioNTech requested US regulators to authorize a further booster dose of their COVID-19 vaccine for seniors, saying information from Israel suggests older adults would profit.

A sign marks an entrance to a Moderna building in Cambridge, Mass.
Moderna mentioned its request for approval for all adults was made “to provide flexibility” to the Centers for Disease Control and Prevention and medical suppliers to find out the “appropriate use” of a second booster.
Bill Sikes/AP
A local resident receives the booster shot of the Moderna coronavirus vaccine.
Earlier this week, Pfizer requested approval for a booster shot for all seniors.
AP/Eugene Hoshiko