By Michael Le Page

A nurse administering a dose of the Pfizer/BioNTech covid-19 vaccinePATRICK T. FALLON/AFP via Getty Images
Two doses of either the Pfizer/BioNTech or the Oxford/AstraZeneca vaccine provide good protection against symptomatic infections by the delta coronavirus variant, but both vaccines are around 15 per cent less effective against delta than against the alpha variant, according to a large study in the UK. The findings also show a waning of protection over time, and imply that vaccinated people who do get infected might be just as infectious as unvaccinated people.
The key message is that it is …

Leave a Reply

Your email address will not be published. Required fields are marked *

Previous post Giant coral is the widest ever found in the Great Barrier Reef
Next post Mentally demanding jobs linked with lower dementia risk in later life