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Waddell CJ, Saldana CS, Schoonveld MM, Meehan AA, Lin CK, Butler JC, Mosites E. Infectious Diseases Among People Experiencing Homelessness: A Systematic Review of the Literature in the United States and Canada, 2003-2022. Public Health Rep 2024:333549241228525. [PMID: 38379269 DOI: 10.1177/00333549241228525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024] Open
Abstract
Homelessness increases the risk of acquiring an infectious disease. We conducted a systematic review of the literature to identify quantitative data related to infectious diseases and homelessness. We searched Google Scholar, PubMed, and SCOPUS for quantitative literature published from January 2003 through December 2022 in English from the United States and Canada. We excluded literature on vaccine-preventable diseases and HIV because these diseases were recently reviewed. Of the 250 articles that met inclusion criteria, more than half were on hepatitis C virus or Mycobacterium tuberculosis. Other articles were on COVID-19, respiratory syncytial virus, Staphylococcus aureus, group A Streptococcus, mpox (formerly monkeypox), 5 sexually transmitted infections, and gastrointestinal or vectorborne pathogens. Most studies showed higher prevalence, incidence, or measures of risk for infectious diseases among people experiencing homelessness as compared with people who are housed or the general population. Although having increased published data that quantify the infectious disease risks of homelessness is encouraging, many pathogens that are known to affect people globally who are not housed have not been evaluated in the United States or Canada. Future studies should focus on additional pathogens and factors leading to a disproportionately high incidence and prevalence of infectious diseases among people experiencing homelessness.
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Affiliation(s)
- Caroline J Waddell
- Office of Readiness and Response, Centers for Disease Control and Prevention, Atlanta, GA, USA
- Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Carlos S Saldana
- Division of Infectious Disease, School of Medicine, Emory University, Atlanta, GA, USA
| | - Megan M Schoonveld
- Office of Readiness and Response, Centers for Disease Control and Prevention, Atlanta, GA, USA
- Oak Ridge Institute for Science and Education, US Department of Energy, Oak Ridge, TN, USA
| | - Ashley A Meehan
- Office of Readiness and Response, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Christina K Lin
- Department of Medicine, School of Medicine, Emory University, Atlanta, GA, USA
| | - Jay C Butler
- Office of Readiness and Response, Centers for Disease Control and Prevention, Atlanta, GA, USA
- Division of Infectious Disease, School of Medicine, Emory University, Atlanta, GA, USA
| | - Emily Mosites
- Office of Readiness and Response, Centers for Disease Control and Prevention, Atlanta, GA, USA
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Zhu A, Bruketa E, Svoboda T, Patel J, Elmi N, El-Khechen Richandi G, Baral S, Orkin AM. Respiratory infectious disease outbreaks among people experiencing homelessness: a systematic review of prevention and mitigation strategies. Ann Epidemiol 2023; 77:127-135. [PMID: 35342013 DOI: 10.1016/j.annepidem.2022.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 02/16/2022] [Accepted: 03/05/2022] [Indexed: 01/04/2023]
Abstract
PURPOSE People experiencing homelessness (PEH) are at increased risk of respiratory infections and associated morbidity and mortality. To characterize optimal intervention strategies, we completed a systematic review of mitigation strategies for PEH to minimize the spread and impact of respiratory infectious disease outbreaks, including COVID-19. METHODS The study protocol was registered in PROSPERO (#2020 CRD42020208964) and was consistent with the preferred reporting in systematic reviews and meta-analyses guidelines. A search algorithm containing keywords that were synonymous to the terms "Homeless" and "Respiratory Illness" was applied to the six databases. The search concluded on September 22, 2020. Quality assessment was performed at the study level. Steps were conducted by two independent team members. RESULTS A total of 4468 unique titles were retrieved with 21 meeting criteria for inclusion. Interventions included testing, tracking, screening, infection prevention and control, isolation support, and education. Historically, there has been limited study of intervention strategies specifically for PEH across the world. CONCLUSIONS Staff and organizations providing services for people experiencing homelessness face specific challenges in adhering to public health guidelines such as physical distancing, isolation, and routine hygiene practices. There is a discrepancy between the burden of infectious diseases among PEH and specific research characterizing optimal intervention strategies to mitigate transmission in the context of shelters. Improving health for people experiencing homelessness necessitates investment in programs scaling existing interventions and research to study new approaches.
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Affiliation(s)
- Alice Zhu
- Population Health Service, Inner City Health Associates. Toronto, ON, Canada; Department of Family and Community Medicine, University of Toronto, ON, Canada; Department of General Surgery, University of Toronto, Toronto, ON, Canada
| | - Eva Bruketa
- Population Health Service, Inner City Health Associates. Toronto, ON, Canada; Queen's University, School of Medicine, Kingston, ON, Canada
| | - Tomislav Svoboda
- Population Health Service, Inner City Health Associates. Toronto, ON, Canada; Department of Family and Community Medicine, University of Toronto, ON, Canada
| | - Jamie Patel
- Population Health Service, Inner City Health Associates. Toronto, ON, Canada; Ryerson University, Daphne Cockwell School of Nursing, Toronto, ON, Canada
| | - Nika Elmi
- Population Health Service, Inner City Health Associates. Toronto, ON, Canada; Johns Hopkins School of Public Health, Baltimore, MD, USA
| | | | - Stefan Baral
- Population Health Service, Inner City Health Associates. Toronto, ON, Canada; Johns Hopkins School of Public Health, Baltimore, MD, USA
| | - Aaron M Orkin
- Population Health Service, Inner City Health Associates. Toronto, ON, Canada; Department of Family and Community Medicine, University of Toronto, ON, Canada; Dalla Lana School of Public Health, University of Toronto, ON, Canada.
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Guo XJ, Takiff HE, Wang J, Han GY, Fan YZ, Wu GH, Ma JP, Liu SY. An office building outbreak: the changing epidemiology of tuberculosis in Shenzhen, China. Epidemiol Infect 2020; 148:e59. [PMID: 32089146 DOI: 10.1017/S0950268820000552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Tuberculosis (TB) is generally considered a disease that principally afflicts the low-income segments of a population. In the Nanshan District of Shenzhen, China, with the economic transformation and a new Headquarters Economy (HE) emerging, there are now more cases in office workers than in manufacturing workers. To illustrate this trend, we describe a small TB outbreak in an office building located in the centre of the rapidly growing HE district. Two active pulmonary tuberculosis cases were found in workers who shared an office, and whole genome sequencing showed that the genetic distance between the strains of the two cases was just one single nucleotide polymorphism, consistent with intra-office transmission. Investigation of 30 other workers in the same or adjacent offices with interviews, interferon-gamma release assays (IGRAs) and chest X-rays, identified one new TB case and latent tuberculosis infection (LTBI) in 40.0% (12/30) of the contacts. The offices were under-ventilated. None of the IGRA positive, asymptomatic contacts agreed to receive treatment for LTBI, presumably due to TB stigma, and over the next 2 years 69.0% (20/29) of the contacts were lost to follow-up. Treatment for LTBI and stigma of TB remain challenges here. Office workers in the HE of rapidly economic developing areas should be targeted with increased vigilance by TB control programmes.
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Moffa M, Cronk R, Fejfar D, Dancausse S, Padilla LA, Bartram J. A systematic scoping review of environmental health conditions and hygiene behaviors in homeless shelters. Int J Hyg Environ Health 2019; 222:335-346. [DOI: 10.1016/j.ijheh.2018.12.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 12/17/2018] [Accepted: 12/17/2018] [Indexed: 10/27/2022]
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Hino P, Monroe AA, Takahashi RF, Souza KMJD, Figueiredo TMRMD, Bertolozzi MR. Tuberculosis control from the perspective of health professionals working in street clinics. Rev Lat Am Enfermagem 2018; 26:e3095. [PMID: 30517582 PMCID: PMC6280170 DOI: 10.1590/1518-8345.2691.3095] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 09/17/2018] [Indexed: 08/10/2023] Open
Abstract
PURPOSE to present the opinion of professionals about street dwellers undergoing treatment of tuberculosis and identify strategies of control of tuberculosis in this population. METHOD an exploratory and descriptive study involving 17 health professionals working in street clinics. A semi-structured study composed of closed questions and a guiding question. The statements were analyzed using the discourse analysis technique, resulting in the identification of two analytical categories: 1. Meanings attributed to street dwellers with tuberculosis, and 2. Control of tuberculosis in homeless people. RESULTS the analysis identified situations that limited adherence to tuberculosis treatment, including the reasons for staying in the streets, living conditions, and risk factors (dependence on alcohol and other drugs, short-sightedness, constant relocations, and lack of perspectives). Street dwellers were knowledgeable about the disease. Furthermore, there were difficulties in solving several problems of people living in the streets, including living conditions and lifestyle, social stigma, relocations, drug abuse, and lack of life project. CONCLUSION coping with the complexity of situations related to living in the streets limits to the work of health professionals because these situations go beyond health care and require intersectoral actions.
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Affiliation(s)
- Paula Hino
- Universidade Federal de São Paulo, Escola Paulista de Enfermagem, São Paulo, SP, Brazil
| | - Aline Aparecida Monroe
- Universidade de São Paulo, Escola de Enfermagem de Ribeirão Preto, PAHO/WHO Collaborating Centre for Nursing Research Development, Ribeirão Preto, SP, Brazil
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Shaweno D, Karmakar M, Alene KA, Ragonnet R, Clements AC, Trauer JM, Denholm JT, McBryde ES. Methods used in the spatial analysis of tuberculosis epidemiology: a systematic review. BMC Med 2018; 16:193. [PMID: 30333043 PMCID: PMC6193308 DOI: 10.1186/s12916-018-1178-4] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 09/20/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Tuberculosis (TB) transmission often occurs within a household or community, leading to heterogeneous spatial patterns. However, apparent spatial clustering of TB could reflect ongoing transmission or co-location of risk factors and can vary considerably depending on the type of data available, the analysis methods employed and the dynamics of the underlying population. Thus, we aimed to review methodological approaches used in the spatial analysis of TB burden. METHODS We conducted a systematic literature search of spatial studies of TB published in English using Medline, Embase, PsycInfo, Scopus and Web of Science databases with no date restriction from inception to 15 February 2017. The protocol for this systematic review was prospectively registered with PROSPERO ( CRD42016036655 ). RESULTS We identified 168 eligible studies with spatial methods used to describe the spatial distribution (n = 154), spatial clusters (n = 73), predictors of spatial patterns (n = 64), the role of congregate settings (n = 3) and the household (n = 2) on TB transmission. Molecular techniques combined with geospatial methods were used by 25 studies to compare the role of transmission to reactivation as a driver of TB spatial distribution, finding that geospatial hotspots are not necessarily areas of recent transmission. Almost all studies used notification data for spatial analysis (161 of 168), although none accounted for undetected cases. The most common data visualisation technique was notification rate mapping, and the use of smoothing techniques was uncommon. Spatial clusters were identified using a range of methods, with the most commonly employed being Kulldorff's spatial scan statistic followed by local Moran's I and Getis and Ord's local Gi(d) tests. In the 11 papers that compared two such methods using a single dataset, the clustering patterns identified were often inconsistent. Classical regression models that did not account for spatial dependence were commonly used to predict spatial TB risk. In all included studies, TB showed a heterogeneous spatial pattern at each geographic resolution level examined. CONCLUSIONS A range of spatial analysis methodologies has been employed in divergent contexts, with all studies demonstrating significant heterogeneity in spatial TB distribution. Future studies are needed to define the optimal method for each context and should account for unreported cases when using notification data where possible. Future studies combining genotypic and geospatial techniques with epidemiologically linked cases have the potential to provide further insights and improve TB control.
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Affiliation(s)
- Debebe Shaweno
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia.
- Victorian Tuberculosis Program at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia.
| | - Malancha Karmakar
- Victorian Tuberculosis Program at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Department of Microbiology and Immunology, University of Melbourne, Melbourne, Victoria, Australia
| | - Kefyalew Addis Alene
- Research School of Population Health, College of Health and Medicine, The Australian National University, Canberra, Australia
- Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Romain Ragonnet
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
- Burnet Institute, Melbourne, Australia
| | | | - James M Trauer
- Victorian Tuberculosis Program at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Justin T Denholm
- Victorian Tuberculosis Program at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Department of Microbiology and Immunology, University of Melbourne, Melbourne, Victoria, Australia
| | - Emma S McBryde
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, Queensland, Australia
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Cavany SM, Vynnycky E, Anderson CS, Maguire H, Sandmann F, Thomas HL, White RG, Sumner T. Should NICE reconsider the 2016 UK guidelines on TB contact tracing? A cost-effectiveness analysis of contact investigations in London. Thorax 2018; 74:185-193. [PMID: 30121574 DOI: 10.1136/thoraxjnl-2018-211662] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 07/08/2018] [Accepted: 07/30/2018] [Indexed: 11/04/2022]
Abstract
BACKGROUND In January 2016, clinical TB guidance in the UK changed to no longer recommend screening contacts of non-pulmonary, non-laryngeal (ETB) index cases. However, no new evidence was cited for this change, and there is evidence that screening these contacts may be worthwhile. The objective of this study was to estimate the cost-effectiveness of screening contacts of adult ETB cases and adult pulmonary or laryngeal TB (PTB) cases in London, UK. METHODS We carried out a cross-sectional analysis of data collected on TB index cases and contacts in the London TB register and an economic evaluation using a static model describing contact tracing outcomes. Incremental cost-effectiveness ratios (ICERs) were calculated using no screening as the baseline comparator. All adult TB cases (≥15 years old) in London from 2012 to 2015, and their contacts, were eligible (2465/5084 PTB and 2559/6090 ETB index cases were included). RESULTS Assuming each contact with PTB infects one person/month, the ICER of screening contacts of ETB cases was £78 000/quality-adjusted life-years (QALY) (95% CI 39 000 to 140 000), and screening contacts of PTB cases was £30 000/QALY (95% CI 18 000 to 50 000). The ICER of screening contacts of ETB cases was £30 000/QALY if each contact with PTB infects 3.4 people/month. Limitations of this study include the use of self-reported symptomatic periods and lack of knowledge about onward transmission from PTB contacts. CONCLUSIONS Screening contacts of ETB cases in London was almost certainly not cost-effective at any conventional willingness-to-pay threshold in England, supporting recent changes to National Institute for Health and Care Excellence national guidelines.
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Affiliation(s)
- Sean M Cavany
- TB Modelling Group, TB Centre and CMMID, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK.,Statistics, Modelling and Economics Department, Public Health England, London, UK.,Department of Biological Sciences, University of Notre Dame, South Bend, IN, United States
| | - Emilia Vynnycky
- TB Modelling Group, TB Centre and CMMID, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK.,Statistics, Modelling and Economics Department, Public Health England, London, UK
| | | | - Helen Maguire
- Field Epidemiology Service, Public Health England, London, UK.,Institute for Global Health, University College London, London, UK
| | - Frank Sandmann
- Statistics, Modelling and Economics Department, Public Health England, London, UK.,CMMID, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - H Lucy Thomas
- Respiratory Diseases Department, Public Health England, London, UK
| | - Richard G White
- TB Modelling Group, TB Centre and CMMID, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Tom Sumner
- TB Modelling Group, TB Centre and CMMID, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
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Sotgiu G, Dara M, Centis R, Matteelli A, Solovic I, Gratziou C, Rendon A, Battista Migliori G. Breaking the barriers: Migrants and tuberculosis. Presse Med 2017; 46:e5-e11. [PMID: 28256381 DOI: 10.1016/j.lpm.2017.01.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 01/24/2017] [Indexed: 10/20/2022] Open
Abstract
Tuberculosis (TB) can represent an important clinical and public health in developing and developed countries. Low- and middle-income countries are facing an epidemic which is difficult to address because of the drug-resistance spread and the association of TB with HIV/AIDS. High-income countries, whose TB incidence has decreased in the last decades, can be involved in new TB epidemic waves owing to social, healthcare, and economic hurdles and challenges. In particular, migrants coming from high TB incidence countries can represent a new epidemiological issue in the TB care and control in geographical areas where primary care and specialized centres are not equipped to face the clinical and public health issues associated with the TB disease. The healthcare management of individuals with a latent TB infection or the TB disease is heterogeneous and different policies are in place in Europe, and, specifically, in EU countries. Scientific evidence on how to early and efficiently detect TB cases is missing, as well as diagnostic tools to diagnose those who have latent TB infection do not show adequate accuracy. Countries like Greece and Italy have political difficulties in the management of migrants and the poor living conditions in the migration centres can increase the probability of Mycobacterium tuberculosis transmission. A clear advocacy and political commitment are urgently required. The current migration trends represent a threat from a human and a healthcare perspective. New homogeneous and target-oriented policies and strategies are needed to improve the health of the migrant and of the autochthonous populations.
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Affiliation(s)
- Giovanni Sotgiu
- University of Sassari, Department of Biomedical Sciences, Clinical Epidemiology and Medical Statistics Unit, Sassari, Italy
| | - Masoud Dara
- World Health Organization Regional Office for Europe, Copenhagen, Denmark
| | - Rosella Centis
- Maugeri Care and Research Institute, IRCCS, World Health Organization Collaborating Centre for Tuberculosis and Lung Diseases, Tradate, Italy
| | - Alberto Matteelli
- University of Brescia, WHO Collaborating Centre for TB/HIV and TB elimination, Department of Infectious and Tropical Diseases, Piazzale Spedali Civili, 1, 25123 Brescia, Italy
| | - Ivan Solovic
- National Institute for TB, Lung Diseases and Thoracic Surgery, Vysne Hagy, Catholic University Ruzomberok, Ruzomberok, Slovakia
| | - Christina Gratziou
- Evgenidio Hospital, University Respiratory Medicine Unit, Athens, Greece
| | - Adrian Rendon
- University Hospital of Monterrey, Center for Research, Prevention and Treatment of Respiratory Infections, Monterrey, Mexico
| | - Giovanni Battista Migliori
- Maugeri Care and Research Institute, IRCCS, World Health Organization Collaborating Centre for Tuberculosis and Lung Diseases, Tradate, Italy.
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