Delaying the second dose of COVID-19 vaccines, at least for people aged under 65, could result in up to 20% lower mortality, but only under certain […]
Mixing doses of the Oxford AstraZeneca and the Pfizer BioNTech covid-19 vaccine leads to more frequent mild to moderate reactions compared with standard dosing schedules, researchers […]
A large trial of annual screening tests for ovarian cancer showed they did not reduce deaths despite picking up cancers earlier,1 ruling out the possibility of […]