Publications by authors named "H K Brustad"
Restrictions of cross-border mobility are typically used to prevent an emerging disease from entering a country in order to slow down its spread. However, such interventions can come with a significant societal cost and should thus be based on careful analysis and quantitative understanding on their effects. To this end, we model the influence of cross-border mobility on the spread of COVID-19 during 2020 in the neighbouring Nordic countries of Denmark, Finland, Norway and Sweden.
View Article and Find Full Text PDFIn pig production, the production animals are generally three- or four-way crossbreeds. Reliable information regarding the breed of origin of slaughtered pigs is useful, even a prerequisite, for a number of purposes, e.g.
View Article and Find Full Text PDFArticle Synopsis
- The study highlights the critical need to understand the transmission of the Omicron variant of SARS-CoV-2, revealing that it spreads more easily than the Delta variant in households.
- Analysis of Norwegian contact tracing data from late 2021 showed that the secondary attack rate (SAR) for Omicron was significantly higher, with a relative risk of 1.41 compared to Delta.
- Interestingly, while three-dose vaccinated individuals had a lower infection risk, the spread of Omicron was still notably high at 46% among those infected, demonstrating its potency even among vaccinated populations.
Strategies for pairwise searches in forensic kinship analysis.
Forensic Sci Int Genet
September 2021
Article Synopsis
- The study focuses on assessing kinship between individuals using DNA profiles in various contexts, like crime investigations and archaeological research.
- It advances existing methods by modeling complex relationships, including inbreeding, and utilizes both X-chromosomal and autosomal markers for more accurate results.
- The research addresses the challenges of multiple testing errors by applying optimal thresholds and Bayesian techniques, demonstrating effectiveness through simulations and real data, with implementation options available for free.
In this paper we investigate various effects of inbreeding on the likelihood ratio (LR) in forensic kinship testing. The basic setup of such testing involves formulating two competing hypotheses, in the form of pedigrees, describing the relationship between the individuals. The likelihood of each hypothesis is computed given the available genetic data, and a conclusion is reached if the ratio of these exceeds some pre-determined threshold.
View Article and Find Full Text PDF