PubMed · 7998466
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A Olsson. 1994-02-24. [Denmark needs Swedish nurses].. https://pubmed.ncbi.nlm.nih.gov/7998466/
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BACKGROUNDIncreasing incidence rates of invasive Streptococcus dysgalactiae subspecies equisimilis (iSDSE) have been detected worldwide.AIMWe aimed to investigate iSDSE infection incidence rates in Denmark during 2014-2024, and characterise the genomic population structure of a subset of iSDSE isolates and their antimicrobial resistance (AMR).METHODSUsing national register data, we estimated overall and sex-/age-stratified iSDSE incidences during 2014-2024, by retrospectively identifying cases of invasive infections with group C and G streptococci or S. dysgalactiae (including specified as subspecies equisimilis). From the voluntary national beta-haemolytic streptococci laboratory surveillance system, whole-genome-sequenced isolates from August 2020-September 2022 were used to investigate the iSDSE genomic population structure. Susceptibility to penicillin, erythromycin and clindamycin was determined and AMR genes identified.RESULTSDuring 2014-2024, iSDSE incidence rates increased significantly (linear trend analysis p < 0.001) with mean annual incidence ranging between 10.3 and 16.4 per 100,000, peaking in 2023. Incidence was higher in males, increasing with older age. Nearly 75% of the 1,223 iSDSE isolates belonged to four of 14 genetic clusters. Sequence types (STs) ST20 and ST17 were most prevalent, while emm-type stG62647, a variant associated internationally with higher virulence, dominated. All isolates were phenotypically susceptible to penicillin but approximately 10% were respectively erythromycin and clindamycin resistant. High erythromycin resistance prevalence (57%; 39/68), coinciding with gene ermA, occurred in one genetic cluster.CONCLUSIONThe findings illustrate the need for national registry-based surveillance to detect epidemiological changes and potential outbreaks. Further, continuous genomic surveillance can monitor the occurrence and expansion of genetic clades and AMR genes.
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Screening for diabetic retinopathy was introduced in Denmark in 1988. At present, screening is carried out in four of the 14 counties, thus being available to a minority of diabetic subjects. According to the WHO but also the National Board of Health, all diabetic patients should undergo screening for diabetic retinopathy. Not only does screening pay off in terms of preservation of vision, it is also cost-effective, as confirmed in the present study. The first fully digitized clinic for retinopathic screening in diabetic patients was recently introduced in the County of North Jutland. Preliminary results from this clinic indicate that all procedures can be handled in this fully digitized system. We therefore predict that fully digitized clinics for retinopathic screening will be introduced throughout Denmark in the future.