Top federal health officials have ignored their own advisers.

The Federal Drug Administration and the Centers for Disease Control have approved Pfizer booster shots.

The decision was made despite their own experts’ uncertainty about when and if the shots are needed — at least for now.

Critics contend both federal agencies caved to White House political pressure.

Lexington Medical Center has begun offering the Pfizer boosters to those who want them at Brookland Baptist Church in West Columbia.

The shots are available to those who had primary Pfizer shots but not those who had Moderna or Johnson & Johnson.

CDC advisers concede it is normal for virus-blocking antibodies to be highest right after vaccination and then wane over the following months.

“We don’t care if antibodies wane,” said Dr. Sarah Long of Drexel University. “You care what is the minimum needed for protection.”

The CDC experts say they don’t yet know the antibody level below which your risk of infection jumps. Even then, the body has back-up defenses.

Older people may lack these antibody production and back-up defenses but it’s impossible to tell the age at which that becomes a problem, CDC microbiologist Natalie Thornburg said.

The CDC advisers met this week to debate which Americans should get booster shots and when, the Associated Press reported.

This question, they said, has proved more contentious than the Biden administration expected.

They met days after Food and Drug Administration advisers overwhelmingly rejected a sweeping White House plan to give booster shots to nearly everyone.

The advisers endorsed Pfizer vaccine boosters only to senior citizens and those at high risk.