Iceland’s Chief Epidemiologist Þórólfur Guðnason has decided to offer a fourth dose of COVID-19 vaccine to those 80 years of age and older, as well as all residents of nursing homes, Vísir reports. The decision is based on data from abroad that show COVID infection among older demographics can lead to serious illness even after three doses of COVID-19 vaccine. Þórólfur expects infection rates to remain low throughout the summer but points out that there is still uncertainty about how long immunity from vaccines and previous COVID-19 illness lasts.
“There is data emerging both from across the pond and from Europe that infections among these individuals that have received three doses can be very serious, much more serious and worse than among younger people that have received three doses,” Þórólfur stated. “There are recommendations from the European Centre for Disease Prevention and Control and the European Medicines Agency to offer these people a fourth dose and it’s on that basis that we are doing so.”
Chronically ill encouraged to receive fourth dose
Previously, the Chief Epidemiologist has only recommended fourth doses of COVID-19 vaccine to those who are chronically ill. Þórólfur says, however, that participation among the group has been lower than hoped when it comes to the fourth shot. The general population is still not being offered a fourth dose in Iceland. Currently, 81% of eligible residents in Iceland are fully vaccinated, and around 56% of the total population have received a third dose.
Unknown how long immunity lasts
Iceland is currently reporting 100-200 new COVID-19 cases per day, but authorities believe the true number to be higher. Seventeen are currently in hospital with COVID-19 infection. Þórólfur says he expects infection rates to remain low throughout the summer, but the coming autumn and winter are less certain, both because COVID-19 has shown itself to be seasonal and because we still do not know how long immunity provided by vaccines or by COVID-19 infection lasts.
“There are viruses that ramp up in the fall and winter time and I think it’s fairly likely we will have a good period this summer. Then it’s a question of what will happen in the fall. We just have to wait and see. I’m not predicting anything bad, necessarily, but we have to just monitor the situation closely.”