PMID- 31233852 OWN - NLM STAT- MEDLINE DCOM- 20200226 LR - 20200226 IS - 1532-2939 (Electronic) IS - 0195-6701 (Linking) VI - 103 IP - 3 DP - 2019 Nov TI - Epidemiology and impact of norovirus outbreaks in Norwegian healthcare institutions, 2005-2018. PG - 335-340 LID - S0195-6701(19)30268-3 [pii] LID - 10.1016/j.jhin.2019.06.010 [doi] AB - 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. FINDINGS: A total of 20,544 cases, including 7044 healthcare personnel were reported in 965 outbreaks; 740 from LTCFs and 225 from hospitals. Median number of cases per outbreak was 15, interquartile range (IQR) 8-25 in LTCF; and 17, IQR 10-28 in hospitals. All regions reported outbreaks, with one-third of the municipalities having at least one outbreak in LTCFs during the study period. The start of the outbreak season happened almost four weeks earlier in hospitals than in LTCFs. The estimated average number of working days lost for healthcare personnel per year ranged from 1590 to 1944. CONCLUSIONS: Norovirus outbreaks in Norwegian HCIs appears to have a substantial impact on both hospital and LTCFs all over Norway, especially during the winter months. That up to half of all cases were healthcare professionals emphasizes a need for further focus on infection control. Our results suggest that hospitals, affected first, could alert LTCFs in the area in order to prevent further outbreaks. CI - Copyright (c) 2019 The Authors. Published by Elsevier Ltd.. All rights reserved. FAU - Espenhain, L AU - Espenhain L AD - Department of Antibiotic Resistance and Infection Prevention, Norwegian Institute of Public Health, Oslo, Norway; EPIET: European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control, (ECDC), Stockholm, Sweden. Electronic address: Laura.Espenhain@fhi.no. FAU - Berg, T C AU - Berg TC AD - Department of Antibiotic Resistance and Infection Prevention, Norwegian Institute of Public Health, Oslo, Norway. FAU - Bentele, H AU - Bentele H AD - Department of Antibiotic Resistance and Infection Prevention, Norwegian Institute of Public Health, Oslo, Norway. FAU - Nygard, K AU - Nygard K AD - Department of Zoonotic, Food- and Waterborne Infections, Norwegian Institute of Public Health, Oslo, Norway. FAU - Kacelnik, O AU - Kacelnik O AD - Department of Antibiotic Resistance and Infection Prevention, Norwegian Institute of Public Health, Oslo, Norway; Research Centre for Antimicrobial Resistance, Norwegian Institute of Public Health, Oslo, Norway. LA - eng PT - Journal Article DEP - 20190622 PL - England TA - J Hosp Infect JT - The Journal of hospital infection JID - 8007166 SB - IM MH - Caliciviridae Infections/*epidemiology MH - Cross Infection/*epidemiology MH - *Disease Outbreaks MH - Health Facilities MH - Humans MH - Norway/epidemiology MH - Prevalence MH - Topography, Medical OTO - NOTNLM OT - Disease outbreaks OT - Health facilities OT - Norovirus OT - Public health surveillance EDAT- 2019/06/25 06:00 MHDA- 2020/02/27 06:00 CRDT- 2019/06/25 06:00 PHST- 2018/09/11 00:00 [received] PHST- 2019/06/18 00:00 [accepted] PHST- 2019/06/25 06:00 [pubmed] PHST- 2020/02/27 06:00 [medline] PHST- 2019/06/25 06:00 [entrez] AID - S0195-6701(19)30268-3 [pii] AID - 10.1016/j.jhin.2019.06.010 [doi] PST - ppublish SO - J Hosp Infect. 2019 Nov;103(3):335-340. doi: 10.1016/j.jhin.2019.06.010. Epub 2019 Jun 22.