Canada: 82% Delta vaccine breakthrough in Calgary hospital coronavirus outbreak

An outbreak of the Delta coronavirus variant at the Foothills Medical Centre in Calgary has seen 16 patients and six health-care workers tested positive for the variant.   More...

UK: BMJ letter – “we need an urgent focus on mitigations in schools” for Delta coronavirus variant

“On the 17 May 2021, the UK government removed the requirement for face coverings in secondary schools in England.  More...