![Aaron Longworth, 30, receives the Pfizer-BioNTech Covid-19 vaccine in Newcastle, north-east England. Getty Images](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/P4SCTKZX7ZASBLU7OGCUVMHY3M.jpg?smart=true&auth=85e0b4cb0ca44271a6afc8014d601e6689484c536e5ac9fbce920f88f83c9735&width=400&height=225)
Aaron Longworth, 30, receives the Pfizer-BioNTech Covid-19 vaccine in Newcastle, north-east England. Getty Images
Aaron Longworth, 30, receives the Pfizer-BioNTech Covid-19 vaccine in Newcastle, north-east England. Getty Images
Oxford scientist: no booster shots until poor countries vaccinated
Prof Andrew Pollard warns global immunisation rates remain dangerously low