Quantification of alizarin red S uptake in coregonid eggs after mass-marking.

An easy method to measure the uptake rate of the persistent dye alizarin red S (ARS) during marking of whitefish eggs was established and used to measure the ARS content in three different whitefish species during and at the end of the marking procedure. Those values show that only 6-10% of the ARS in the marking solution will be absorbed by the eggs (0.0061-0.

Epidemiology and impact of norovirus outbreaks in Norwegian healthcare institutions, 2005-2018.

Aim: The aim of this study was, for the first time, to describe in detail the epidemiology and impact of norovirus outbreaks in healthcare institituions (HCIs) in Norway to identify areas which may improve outbreak response.

Methods: An analysis of all reported norovirus outbreaks in hospitals and long-term-care facilities (LTCFs) was carried out from week 34, 2005 to week 33, 2018. Seasonality, symptoms and number of cases among personnel and patients were described.

Increase of scabies infestations, Norway, 2006 to 2018.

Between October and December 2018, several clinicians in Norway reported an increase in scabies diagnoses. We compared data from the Norwegian Syndromic Surveillance System on medical consultations for mite infestations with scabies treatment sales data to investigate this reported increase. From 2013 to 2018, consultations and sales of scabies treatments had almost increased by threefold, particularly affecting young adults 15-29 years.

Antibiotic use and infections in nursing homes.

Background: Residents in nursing homes have a higher risk of developing infections that require antibiotic treatment than elderly people living at home. Use of antibiotics may cause adverse effects and result in the development of antimicrobial resistance.

Material And Method: Data on healthcare-associated infections and antibiotic use in 540 Norwegian nursing homes were retrieved from the Norwegian Institute of Public Health’s point prevalence survey in the spring of 2016.