“While data shows vaccination is reducing the rate of serious illness due to COVID-19 in Iceland, the country’s Chief Epidemiologist Þórólfur Guðnason says it has not led to the herd immunity that experts hoped for. In the past two to three weeks, the Delta variant has outstripped all others in Iceland and it has become clear that vaccinated people can easily contract it as well as spread it to others, Þórólfur stated in a briefing this morning.”

https://www.icelandreview.com/society/covid-19-in-iceland-vaccination-has-not-led-to-herd-immunity-says-chief-epidemiologist/