Agnar Helgason
- Genetic Associations and Epidemiology
- Forensic and Genetic Research
- Genetic diversity and population structure
- Genomics and Rare Diseases
- Genomic variations and chromosomal abnormalities
- Cancer Genomics and Diagnostics
- Genomics and Chromatin Dynamics
- Epigenetics and DNA Methylation
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Genetics and Neurodevelopmental Disorders
- Genetic and phenotypic traits in livestock
- DNA Repair Mechanisms
- Chromosomal and Genetic Variations
- Evolution and Genetic Dynamics
- Genomics and Phylogenetic Studies
- SARS-CoV-2 and COVID-19 Research
- CRISPR and Genetic Engineering
- Race, Genetics, and Society
- Genetic Mapping and Diversity in Plants and Animals
- Archaeology and ancient environmental studies
- Forensic Anthropology and Bioarchaeology Studies
- melanin and skin pigmentation
- RNA and protein synthesis mechanisms
- Genetic factors in colorectal cancer
- Nutrition, Genetics, and Disease
deCODE Genetics (Iceland)
2016-2025
University of Iceland
2016-2025
Amgen (Germany)
2022-2023
Directorate of Health
2020
National University Hospital of Iceland
2020
University of Oxford
1998-2003
BackgroundDuring the current worldwide pandemic, coronavirus disease 2019 (Covid-19) was first diagnosed in Iceland at end of February. However, data are limited on how SARS-CoV-2, virus that causes Covid-19, enters and spreads a population.MethodsWe targeted testing to persons living who were high risk for infection (mainly those symptomatic, had recently traveled high-risk countries, or contact with infected persons). We also carried out population screening using two strategies: issuing...
Little is known about the nature and durability of humoral immune response to infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).We measured antibodies in serum samples from 30,576 persons Iceland, using six assays (including two pan-immunoglobulin [pan-Ig] assays), we determined that appropriate measure seropositivity was a positive result both pan-Ig assays. We tested 2102 collected 1237 up 4 months after diagnosis by quantitative polymerase-chain-reaction (qPCR)...
Sequence variants in the parental genomes that are not transmitted to a child (the proband) often ignored genetic studies. Here we show nontransmitted alleles can affect through their impacts on parents and other relatives, phenomenon call "genetic nurture." Using results from meta-analysis of educational attainment, find polygenic score computed for 21,637 probands with at least one parent genotyped has an estimated effect attainment proband is 29.9% (P = 1.6 × 10-14) score. Genetic...