[Preprint] Delaying second Pfizer vaccine dose to 12 weeks increases specific antibody response 3.5-fold in people over 80 years of age.

BNT162b2 Vaccination in People Over 80 Years of Age Induces Strong Humoral Immune Responses with Cross Neutralisation of P.1 Brazilian Variant – The Lancet

News release: Delaying second Pfizer vaccines to 12 weeks significantly increases antibody responses in older people, finds study – University of Birmingham

Commentaries: Delaying a COVID vaccine’s second dose boosts immune response – Nature AND Delaying Second Pfizer COVID-19 Vaccine Dose Increases Antibody Response Threefold In Over-80s, Study Finds – Health Policy Watch AND Delay in giving second jabs of Pfizer vaccine improves immunity – The Guardian AND Expert reaction to preprint looking at the immune response in older people after vaccination the Pfizer-BioNTech COVID-19 vaccine with either a 3-week or a 12-week dosing schedule – Science Media Centre