by Michelle FITZPATRICK FRANKFURT, Germany (AFP) — Pfizer and BioNTech on Monday said trial results showed their coronavirus vaccine is safe and produces a robust immune response in children aged five to 11, adding that they would seek regulatory approval shortly. The vaccine would be administered at a lower dosage than for people over 12, they said. “In participants five to 11 years of age, the vaccine was safe, well tolerated and showed robust neutralising […]