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Dolosigranulum pigrum is a gram-positive, catalase-negative bacteria rarely associated with disease. We report a case of biomaterial-associated arthritis in an immunocompetent patient caused by D. pigrum. The organism was isolated from a synovial biopsy specimen and its identity confirmed by 16S rRNA gene sequencing.

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Delayed diagnosis led to an unusually large tuberculosis outbreak in a Norwegian context. The extent of contact tracing varied with no obvious relation to the infectiousness of the index patient. The outbreak demonstrates the importance of continued vigilance with regard to tuberculosis as a differential diagnosis, also among patients born in Norway.

A prospective, randomized study was carried out to investigate whether repeated hospital discharge information on audiotape at home could improve knowledge and rehabilitation in patients with first-time myocardial infarction. The study comprised 50 patients (12 females and 38 males) of up to 75 years of age. At discharge, 26 patients were given tape recordings to use at home for one week, while 24 patients represented controls. High scores in patients' knowledge about their own disease were noted, as well as differences in long-term sick leave between the two groups and readmissions or need for emergency visits. No difference in knowledge was observed, but fewer patients in the tape group had long-term sick leave, readmissions or need for emergency visits. We found that baseline characteristics were similar in the two groups. Since acquired knowledge did not appear to differ between the groups, an effect of the taped information on the patients' family network is considered.

På side 801 i figurteksten skal det stå: Stiplet linje indikerer D-dimerverdier > 35,2 mg/l FEU. Videre skal det på samme side stå: Dag 7 steg D-dimerverdiene fra 2,8 til 24 mg/l FEU og Grunnet ny D-dimerstigning fra 16 mg/l FEU til 26 mg/l FEU. I figuren på samme side skal det i p-D-dimer-grafen stå mg/l FEU på y-aksen. På side 802 skal det stå: Det forelå ved innkomst respiratorisk alkalose, og D-dimerverdien var 1,9 mg/l FEU. På samme side skal det også stå: Høye D-dimerverdier (> 1,0 mg/l FEU) ved innkomst er i flere studier rapportert å vaere assosiert med økt risiko for død ved covid-19. Vi beklager feilen, den er rettet på nett.