Pfizer asks US to allow 4th COVID vaccine dose for seniors

Pfizer and its partner BioNTech asked U.S. regulators Tuesday to authorize an additional booster dose of their COVID-19 vaccine for seniors, saying data from Israel suggests older adults would benefit.

Currently the U.S. urges two primary shots followed months later by a booster dose for everyone age 12 and older. The new application seeks to add a fourth shot only for the over-65 population that has been hit hardest by the pandemic.

The Food and Drug Administration and the Centers for Disease Control would have to approve the request. If so, a key question would be how soon seniors would be advised to roll up their sleeves.

While authorities say the vaccinations continue to offer strong protection against severe illness, they haven’t held up as well against milder infections especially those due to the omicron mutant. With COVID-19 cases finally plummeting after the intense omicron surge, public health experts are starting to look ahead to what next steps might be needed — if a new variant crops up or, barring that, whether to try shoring up coronavirus protection in the fall at the same time people get flu vaccinations.