JERUSALEM (REUTERS) - Israel this month will present data from an extensive roll-out of Covid-19 vaccine booster shots to the United States Food and Drug Administration (FDA), which is weighing White House plans to begin a booster drive in the US.

Dr Sharon Alroy-Preis, head of public health at Israel's Health Ministry, said the ministry had been asked by the FDA to brief its advisors at a Sept 17 meeting.

The virtual session will consider a third booster shot of the Pfizer-BioNTech vaccine, and may discuss others. "We have been asked to come and present Israel's experience and our data so that we can truly help the whole world to learn," Dr Alroy-Preis told Israeli Channel 12 TV news.

A week ago, Israel began offering a Pfizer Covid-19 booster to people as young as 12 in a campaign that began in July among seniors. Israeli health officials said the drive has slowed a rise in severe illness caused by the Delta variant.

Officials have said the effectiveness of the second dose of the Pfizer vaccine waned five months after administration, making a booster necessary. A third dose, they said, restored the level of protection of the second shot.

So far 2.6 million people out of a population of 9.3 million have received three doses of the Pfizer vaccine in Israel.

US President Joe Biden had been expected to launch a campaign to administer 100 million booster shots on Sept 20.

But US vaccine makers other than Pfizer have lagged in seeking authorisation for an additional dose.