UK: Delta with K417N – the “mountaineers” variant – PHE coronavirus Delta-AY.1 update

Of the 36 cases of Delta-AY.1 (mountaineers) variant, 27 cases were known to have a vaccination status within the National Immunisation Management System (NIMS).   More...

USA: Coronavirus vaccine breakthrough infections are potentially contagious

Researchers reported that among 20 fully-vaccinated healthcare workers with vaccine breakthrough COVID-19 cases, all were infected with coronavirus variants.  More...