[1][2] He was one of the lead members of the Iceland's Department of Civil Protection and Emergency Management addressing the COVID-19 pandemic in Iceland, along with Alma Möller and Víðir Reynisson.
[2] In 2013 he defended his doctoral thesis on the epidemiology of pneumococcal infections in young Icelandic children.
[2] The vaccination of Icelandic children aged 12 to 15 began on 22 August 2021, with only the Pfizer/BioNTech used; Chief Epidemiologist Þórólfur Guðnason stating to the public that vaccinating children was "the right thing to do".
Guðnason stated that of the around 270,000 people who were fully vaccinated, 4,500 or 1.6% had contracted COVID.
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