scholarly journals Increasing risk of breakthrough COVID-19 in outbreaks with high attack rates in European long-term care facilities, July to October 2021

2021 ◽  
Vol 26 (49) ◽  
Author(s):  
Carl Suetens ◽  
Pete Kinross ◽  
Pilar Gallego Berciano ◽  
Virginia Arroyo Nebreda ◽  
Eline Hassan ◽  
...  

We collected data from 10 EU/EEA countries on 240 COVID-19 outbreaks occurring from July−October 2021 in long-term care facilities with high vaccination coverage. Among 17,268 residents, 3,832 (22.2%) COVID-19 cases were reported. Median attack rate was 18.9% (country range: 2.8–52.4%), 17.4% of cases were hospitalised, 10.2% died. In fully vaccinated residents, adjusted relative risk for COVID-19 increased with outbreak attack rate. Findings highlight the importance of early outbreak detection and rapid containment through effective infection prevention and control measures.

Author(s):  
Sara Carazo ◽  
Denis Laliberté ◽  
Jasmin Villeneuve ◽  
Richard Martin ◽  
Pierre Deshaies ◽  
...  

ABSTRACT Objectives: To estimate the SARS-CoV-2 infection rate and the secondary attack rate among healthcare workers (HCWs) in Quebec, the most affected province of Canada during the first wave; to describe the evolution of work-related exposures and infection prevention and control (IPC) practices in infected HCWs; and to compare the exposures and practices between acute care hospitals (ACHs) and long-term care facilities (LTCFs). Design: Survey of cases Participants: Quebec HCWs from private and public institutions with laboratory-confirmed COVID-19 diagnosed between 1st March and 14th June 2020. HCWs ≥18 years old, having worked during the exposure period and survived their illness were eligible for the survey. Methods: After obtaining consent, 4542 HCWs completed a standardized questionnaire. COVID-19 rates and proportions of exposures and practices were estimated and compared between ACHs and LTCFs. Results: HCWs represented 25% (13,726/54,005) of all reported COVID-19 cases in Quebec and had an 11-times greater rate than non-HCWs. Their secondary household attack rate was 30%. Most affected occupations were healthcare support workers, nurses and nurse assistants, working in LTCFs (45%) and ACHs (30%). Compared to ACHs, HCWs of LTCFs had less training, higher staff mobility between working sites, similar PPE use but better self-reported compliance with at-work physical distancing. Sub-optimal IPC practices declined over time but were still present at the end of the first wave. Conclusion: Quebec HCWs and their families were severely affected during the first wave of COVID-19. Insufficient pandemic preparedness and suboptimal IPC practices likely contributed to high transmission in both LTCFs and ACHs.


2021 ◽  
Author(s):  
Ignacio Parrón ◽  
Irene Barrabeig ◽  
Miquel Alseda ◽  
Cristina Rius ◽  
Thais Cornejo-Sánchez ◽  
...  

Abstract Norovirus is the leading cause of outbreaks of acute viral gastroenteritis. We carried out this study to investigate outbreaks in long-term care facilities reported in 2017 and 2018 in Catalonia (Spain). The characteristics of the centres, exposed persons and the genogroups responsible were analyzed. Viral loads were estimated. The attack rate (AR), rate ratios (RR) or the odds ratio (OR) and its 95% confidence intervals were calculated. The mean cycle thresholds (Cq) were compared using the t-test for independent means. We included 30 outbreaks (4,631 exposed people). The global AR was 25.9%. The RR of residents vs. staff was 2.28 (95%CI 2.0-2.6). In residents with total or severe dependence the attack rate was 85.16% and in residents with moderate and low dependence or independent was 69.13% (RR 1.23, 95% CI 1.05–1.45). ARs were higher in smaller centres than in larger ones (34.4% vs 19.5%; RR 1.76 (95%CI 1.60–1.94). GII was responsible for 70% of outbreaks and 78.5% of identifications. No association was found between the genogroup and presenting symptoms (OR 0.96; 95% CI 0.41 to 2.26). Viral loads were higher in symptomatic than in asymptomatic patients (p = 0.001). Because norovirus was detected in asymptomatic persons, control measures should be applied not only to people with symptoms but to all persons in LTCF where norovirus outbreaks occur.


2014 ◽  
Vol 19 (29) ◽  
Author(s):  
A S Barret ◽  
N Jourdan-da Silva ◽  
K Ambert-Balay ◽  
G Delmas ◽  
A Bone ◽  
...  

This article describes outbreaks of gastroenteritis in elderly long-term care facilities (LTCF) in France from November 2010 to May 2012 reported through the surveillance system for gastroenteritis outbreaks in LTCF. A total of 1,072 outbreaks were reported, causing 26,551 episodes of illness and 60 deaths. The median attack rate (AR) among residents was 32%. Norovirus and person-to-person transmission were the most frequently reported aetiology and mode of transmission. Control measures were implemented in 1,054 (98%) outbreaks and for 928 outbreaks, the timing of such measures could be inferred. Of these, 799 (86%) had put control measures into effect within three days of the occurrence of the first case. Outbreaks of gastroenteritis in LTCF cause substantial morbidity and mortality among elderly people in France. LTCF are encouraged to develop infection prevention and control plans and to notify any gastroenteritis outbreak to health authorities to ensure rapid control.


2021 ◽  
pp. 175717742110124
Author(s):  
Carl Boodman ◽  
Natalie Gibson ◽  
Davenna Conrod ◽  
Christine Y Turenne ◽  
David C Alexander ◽  
...  

Infection prevention and control measures are used to contain outbreaks of carbapenemase-producing Enterobacteriaceae. We report the absence of transmission of Klebsiella pneumoniae carrying New Delhi metallo-β-lactamase and oxacillinase-48 genes among 19 screened contacts of an index case after 14 months of routine practices in a long-term care facility.


BMJ Open ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. e052282
Author(s):  
Bonita E Lee ◽  
Christopher Sikora ◽  
Douglas Faulder ◽  
Eleanor Risling ◽  
Lorie A Little ◽  
...  

IntroductionThe COVID-19 pandemic has an excessive impact on residents in long-term care facilities (LTCF), causing high morbidity and mortality. Early detection of presymptomatic and asymptomatic COVID-19 cases supports the timely implementation of effective outbreak control measures but repetitive screening of residents and staff incurs costs and discomfort. Administration of vaccines is key to controlling the pandemic but the robustness and longevity of the antibody response, correlation of neutralising antibodies with commercial antibody assays, and the efficacy of current vaccines for emerging COVID-19 variants require further study. We propose to monitor SARS-CoV-2 in site-specific sewage as an early warning system for COVID-19 in LTCF and to study the immune response of the staff and residents in LTCF to COVID-19 vaccines.Methods and analysisThe study includes two parts: (1) detection and quantification of SARS-CoV-2 in LTCF site-specific sewage samples using a molecular assay followed by notification of Public Health within 24 hours as an early warning system for appropriate outbreak investigation and control measures and cost–benefit analyses of the system and (2) testing for SARS-CoV-2 antibodies among staff and residents in LTCF at various time points before and after COVID-19 vaccination using commercial assays and neutralising antibody testing performed at a reference laboratory.Ethics and disseminationEthics approval was obtained from the University of Alberta Health Research Ethics Board with considerations to minimise risk and discomforts for the participants. Early recognition of a COVID-19 case in an LTCF might prevent further transmission in residents and staff. There was no direct benefit identified to the participants of the immunity study. Anticipated dissemination of information includes a summary report to the immunity study participants, sharing of study data with the scientific community through the Canadian COVID-19 Immunity Task Force, and prompt dissemination of study results in meeting abstracts and manuscripts in peer-reviewed journals.


2017 ◽  
Vol 4 (suppl_1) ◽  
pp. S407-S407
Author(s):  
Kate Tyner ◽  
Regina Nailon ◽  
Sue Beach ◽  
Margaret Drake ◽  
Teresa Fitzgerald ◽  
...  

Abstract Background Little is known about hand hygiene (HH) policies and practices in long-term care facilities (LTCF). Hence, we decided to study the frequency of HH-related infection control (IC) gaps and the factors associated with it. Methods The Nebraska (NE) Infection Control Assessment and Promotion Program (ICAP) in collaboration with NE Department of Health and Human Services conducted in-person surveys and on-site observations to assess infection prevention and control programs (IPCP) in 30 LTCF from 11/2015 to 3/2017. The Centers for Disease Control and Prevention (CDC) Infection Prevention and Control Assessment tool for LTCF was used for on-site interviews and the Centers for Medicare and Medicaid (CMS) Hospital IC Worksheet was used for observations. Gap frequencies were calculated for questions (6 on CDC survey and 8 on CMS worksheet) representing best practice recommendations (BPR). The factors studied for the association with the gaps included LTCF bed size (BS), hospital affiliation (HA), having trained infection preventionists (IP), and weekly hours (WH)/ 100 bed spent by IP on IPCP. Fisher’s exact test and Mann Whitney test were used for statistical analyses. Results HH-related IC gap frequencies from on-site interviews are displayed in Figure 1. Only 6 (20%) LTCF reported having all 6 BPR in place and 10 (33%) having 5 BPR. LTCF with fewer gaps (5 to 6 BPR in place) appear more likely to have HA as compared with the LTCF with more gaps but the difference didn’t reach statistical significance (37.5% vs. 7.1%, P = 0.09). When analyzed separately for each gap, it was found that LTCF with HA are more likely to have a policy on preferential use of alcohol based hand rubs than the ones without HA. (85.7%, vs. 26.1% P = 0.008). Several IC gaps were also identified during observations (Figure 2) with one of them being overall HH compliance of <80%. LTCF that have over 90% HH compliance are more likely to have higher median IP WH/100 beds dedicated towards IPCP as compared with the LTCFs with less than 90% compliance (16.4 vs. 4.4, P < 0.05). Conclusion Many HH-related IC gaps still exist in LTCF and require mitigation. Mitigation strategies may include encouraging LTCF to collaborate with IP at local acute care hospitals for guidance on IC activities and to increase dedicated IP times towards IPCP in LTCF. Disclosures All authors: No reported disclosures.


2011 ◽  
Vol 140 (9) ◽  
pp. 1702-1709 ◽  
Author(s):  
L. M. NGUYEN ◽  
J. P. MIDDAUGH

SUMMARYThis study reports on gastroenteritis outbreaks suspected of being norovirus infections in eight long-term care facilities. A descriptive epidemiological investigation was used to depict sources of infections and control measures. Outbreaks affected 299 (31%) of 954 residents and 95 (11%) of 843 staff. Attack rates were higher in residents (range 17–55%) than staff (range 3–35%). Person-to-person spread was suspected. The case-hospitalization rate was 2·5%, and no death occurred. Eight staff members were employed at multiple affected facilities and may have introduced disease into three facilities. Thirty-two stool specimens were positive for norovirus by real-time reverse transcriptase–polymerase chain reaction or enzyme immunoassay. Sequenced specimens were closely related to GII.4 New Orleans. A concurrent Clostridium difficile outbreak was also detected at one facility. Staff members who work at multiple facilities may transmit norovirus between them. Regulatory agencies should consider precluding ill staff from working in multiple facilities during outbreaks. Guidelines to control norovirus must be applied promptly and meticulously by facilities.


2020 ◽  
Author(s):  
Dinesh Aggarwal ◽  
Richard Myers ◽  
William L. Hamilton ◽  
Tehmina Bharucha ◽  
Niamh Tumelty ◽  
...  

A review was undertaken of all genomic epidemiology studies on COVID-19 in long term care facilities (LTCF) that have been published to date. It was found that staff and residents were usually infected with identical, or near identical, SARS-CoV-2 genomes. Outbreaks usually involved one predominant lineage, and the same lineages persisted in LTCFs despite infection control measures. Outbreaks were most commonly due to single or few introductions followed by spread rather than a series of seeding events from the community into LTCFs. Sequencing of samples taken consecutively from the same cases showed persistence of the same genome sequence indicating that the sequencing technique was robust over time. When combined with local epidemiology, genomics facilitated likely transmission sources to be better characterised. Transmission between LTCFs was detected in multiple studies. The mortality rate amongst residents was high in all cases, regardless of the lineage. Bioinformatics methods were inadequate in one third of the studies reviewed, and reproducing the analyses was difficult as sequencing data were not available in many cases.


Sign in / Sign up

Export Citation Format

Share Document