Health chiefs issue 'don't delay' plea for COVID-19 vaccinations ahead of summer | North East and North Cumbria NHS
The U.K. approved omicron-specific booster shots. They're coming to the U.S. soon : NPR
Europe debates 4th coronavirus vaccine as German minister backs double booster – POLITICO
COVID-19 vaccine waning and effectiveness and side-effects of boosters: a prospective community study from the ZOE COVID Study - The Lancet Infectious Diseases
Britain to consider fourth Covid vaccination as Israel and Germany press ahead with second booster
Autumn 2022 COVID booster and flu vaccinations - St Mary's Surgery
UK says 4th COVID jabs not needed for now as booster effect lasts | Reuters
UK volunteers to receive Moderna Omicron COVID-19 booster vaccine in clinical study | NIHR
COVID-19 vaccination in pregnancy :: Healthier Together
Fourth Covid jab can give higher immunity than initial booster, study finds | Vaccines and immunisation | The Guardian