What Iceland's rising Covid-19 case count tells us about vaccine efficacy

Iceland has 96% of the country's female population and 90% of its male population over 16 years old who have had at least one dose. The country's high vaccination rate makes it an interesting place to examine the severity and incidence of breakthrough infections.At the end 2020, the first Covid-19 vaccines in Iceland were administered. By mid-July all Icelanders over 16 years old had been offered a shot. However, tests have shown that domestic Covid-19 infection are still common with the onset and progression of the delta variant.The virus is being spread in the US where vaccine rates are lower. Officials have called it a pandemic of unvaccinated persons. However, Covid-19 cases are higher among those who have been vaccinated.In Iceland, there have been a total of 8,738 cases of coronavirus-related illnesses and 30 deaths since the outbreak. The virus was managed relatively well in Iceland and there has been only one death, May 25, 2021.It is encouraging to see that there have been very few deaths associated with the increasing number of cases. Data shows that people who have been vaccinated against the virus are recovering well without any serious complications.Iceland is a good example of how a vaccine rollout can prevent hospitalizations and deaths, but not guarantee herd immunity.