Children in this age group can receive a primary series consisting of two 3-µg doses of the original Pfizer-BioNTech COVID-19 vaccine followed by a third 3-µg dose of the bivalent vaccine to complete the primary series.

Source: https://investingnews.com/preclinical-data-shows-arg-007-inhibits-one-of-the-main-causes-of-alzheimers-disease/

It is notable that other vaccines that used the same technology without the pseudouridine were not as successful as the Pfizer-BioNTech and Moderna vaccines.

Source: https://www.forbes.com/sites/milletienne/2023/10/07/nobel-prize-goes-to-scientists-who-paved-the-way-for-covid-19-vaccine/

Normally, both populations of cells rapidly increase in response to a vaccine, but after the Pfizer-BioNTech shot, levels of CD4 cells rose first, while CD8 cells didn’t peak until two weeks later.

Source: https://time.com/6265510/covid-19-weaken-immune-system/

Seven-year-old Max gets a dose of the Pfizer-BioNTech children vaccine against the coronavirus disease (COVID-19) at a children doctor’s practice in Bonn, Germany, December 15, 2021.

Source: https://newsinfo.inquirer.net/1795756/eu-announces-deal-with-pfizer-others-to-reserve-vaccines-for-future-pandemic

The CDC and FDA announced on Friday that their surveillance system flagged a possible link between the new Pfizer-BioNTech bivalent Covid-19 vaccine and strokes in people aged 65 and over, but said they were continuing to recommend the shots.

Source: https://biztoc.com/x/108db3a687c4666c?ref=ff