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Sarker AR, Paul S, Zohara F, Hossain Z, Zabeen I, Chowdhury SMZI, Ahmed M, Ali N, Oppong R. Economic burden of dengue in urban Bangladesh: A societal perspective. PLoS Negl Trop Dis 2023; 17:e0011820. [PMID: 38051738 PMCID: PMC10723663 DOI: 10.1371/journal.pntd.0011820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 12/15/2023] [Accepted: 11/26/2023] [Indexed: 12/07/2023] Open
Abstract
BACKGROUND Dengue, a vector-borne disease, is a major public health problem in many tropical and subtropical countries including Bangladesh. The objective of this study is to estimate the societal cost of illness of dengue infections among the urban population in Dhaka, Bangladesh. METHODS A cost-of-illness study was conducted using a prevalence-based approach from a societal perspective. Costs attributable to dengue were estimated from a bottom-up strategy using the guideline proposed by the World Health Organization for estimating the economic burden of infectious diseases. RESULTS A total of 302 hospitalized confirmed dengue patients were enrolled in this study. The average cost to society for a person with a dengue episode was US$ 479.02. This amount was ranged between US$ 341.67 and US$ 567.12 for those patients who were treated at public and private hospitals, respectively. The households out-of-pocket cost contributed to a larger portion of the total costs of illness (66%) while the cost burden was significantly higher for the poorest households than the richest quintile. CONCLUSIONS Dengue disease imposes a substantial financial burden on households and society. Therefore, decision-makers should consider the treatment cost of dengue infections, particularly among the poor in the population while balancing the benefits of introducing potentially effective dengue preventive programs in Bangladesh.
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Affiliation(s)
- Abdur Razzaque Sarker
- Population Studies Division, Bangladesh Institute of Development Studies (BIDS), Dhaka, Bangladesh
- Health Economic Unit, Institute of Applied Health Research, University of Birmingham, Birmingham, United Kingdom
- Health Economic Unit, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - Subrata Paul
- Health Economics Unit, Health Services Division, Ministry of Health and Family Welfare, Dhaka, Bangladesh
| | - Fatema Zohara
- General Economics Division, Bangladesh Planning Commission, Dhaka, Bangladesh
| | - Zakir Hossain
- Population Studies Division, Bangladesh Institute of Development Studies (BIDS), Dhaka, Bangladesh
| | - Irfat Zabeen
- Population Studies Division, Bangladesh Institute of Development Studies (BIDS), Dhaka, Bangladesh
| | | | - Maruf Ahmed
- Population Studies Division, Bangladesh Institute of Development Studies (BIDS), Dhaka, Bangladesh
| | - Nausad Ali
- Population Studies Division, Bangladesh Institute of Development Studies (BIDS), Dhaka, Bangladesh
| | - Raymond Oppong
- Health Economic Unit, Institute of Applied Health Research, University of Birmingham, Birmingham, United Kingdom
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Elnaiem AD, Franke MF, Richterman A, Guillaume Y, Vissieres K, Augustin GC, Ternier R, Ivers LC. Food insecurity and risk of cholera: A cross-sectional study and exploratory analysis of potential mediators. PLoS Negl Trop Dis 2023; 17:e0010574. [PMID: 36745661 PMCID: PMC9934351 DOI: 10.1371/journal.pntd.0010574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 02/16/2023] [Accepted: 01/23/2023] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Food insecurity has been independently associated with developing cholera and there is an inverse relationship between national food security and annual cholera incidence. However, the factors that mediate the risk of cholera among food insecure households remain largely unexplored. METHODOLOGY AND PRINCIPAL FINDINGS In a cross-sectional survey of rural households in Haiti, we explored the role of food behaviors (i.e., dietary choices and food-handling practices) as mediators of cholera risk among food-insecure families. We generated a series of multivariable regression models to test hypothesized associations between the severity of food insecurity (measured by the Household Hunger Scale), hygiene and food behaviors, and history of severe, medically-attended cholera. Moderate household hunger (Adjusted Odds Ratio [AOR] 1.47, 95% Confidence Interval (CI) 1.05-2.04; p = 0.021) and severe hunger (AOR 2.45, 95% CI 1.45-4.15; p = 0.001) were positively associated with a history of severe, medically-attended cholera compared with little to no household hunger. Household hunger was positively associated with three behaviors: antacid use, consumption of leftover non-reheated food, and eating food and beverages prepared outside of the home (i.e., at a restaurant or from a vendor). Consumption of outside food items and antacid use were positively associated with a history of cholera. CONCLUSION Our findings suggest that food behaviors may mediate the association between food insecurity and cholera and contribute to an understanding of how interventions could be designed to target food insecurity as part of cholera prevention and control.
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Affiliation(s)
- Ahmed D. Elnaiem
- Department of Medicine, Division of Global Health Equity, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
| | - Molly F. Franke
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Aaron Richterman
- Division of Infectious Diseases, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Yodeline Guillaume
- Center for Global Health, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | | | | | | | - Louise C. Ivers
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, United States of America
- Center for Global Health, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- * E-mail:
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Deen J, Clemens JD. Vaccine clinical trials in low- and middle-income countries: a brief review of standard, newer and proposed approaches. Expert Rev Vaccines 2022; 21:1595-1602. [DOI: 10.1080/14760584.2022.2126357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Jacqueline Deen
- Institute of Child Health and Human Development, National Institutes of Health, University of the Philippines, Pedro Gil Street, Ermita, Manila 1000, Philippines
| | - John D Clemens
- International Vaccine Institute, SNU Research Park, Gwanak-gu, Seoul, 08826 Korea
- UCLA Fielding School of Public Health, 650 Charles E Young Drive South, Los Angeles, California 90095-1772, USA
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Hsiao A, Ramani E, Seo HJ, Pak G, Vuntade D, M'bang'ombe M, Ngwira B, Quentin W, Marks F, Mogasale V. Economic impact of cholera in households in rural southern Malawi: a prospective study. BMJ Open 2022; 12:e052337. [PMID: 35649608 PMCID: PMC9161053 DOI: 10.1136/bmjopen-2021-052337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 03/08/2022] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION Cholera remains a significant contributor to diarrhoeal illness, especially in sub-Saharan Africa. Few studies have estimated the cost of illness (COI) of cholera in Malawi, a cholera-endemic country. The present study estimated the COI of cholera in Nsanje, southern Malawi, as part of the Cholera Surveillance in Malawi (CSIMA) programme following a mass cholera vaccination campaign in 2015. METHODS Patients ≥12 months of age who were recruited as part of CSIMA were invited to participate in the COI survey. The COI tool captured household components of economic burden, including direct medical and non-medical costs, and indirect lost productivity costs. RESULTS Between April 2016 and March 2020, 40 cholera cases were enrolled in the study, all of whom participated in the COI survey. Only two patients had any direct medical costs and five patients reported lost wages due to illness. The COI per patient was US$14.34 (in 2020), more than half of which was from direct non-medical costs from food, water, and transportation to the health centre. CONCLUSION For the majority of Malawians who struggle to subsist on less than US$2 a day, the COI of cholera represents a significant cost burden to families. While cholera treatment is provided for free in government-run health centres, additional investments in cholera control and prevention at the community level and financial support beyond direct medical costs may be necessary to alleviate the economic burden of cholera on households in southern Malawi.
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Affiliation(s)
- Amber Hsiao
- Department of Health Care Management, Technische Universität Berlin, Berlin, Germany
| | - Enusa Ramani
- Department of Health Care Management, Technische Universität Berlin, Berlin, Germany
- Policy and Economic Research, International Vaccine Institute, Seoul, The Republic of Korea
| | - Hye-Jin Seo
- Epidemiology, Public Health, Impact, International Vaccine Institute, Seoul, The Republic of Korea
| | - GiDeok Pak
- Biostatistics & Data Management, International Vaccine Institute, Seoul, The Republic of Korea
| | - Dan Vuntade
- Department of Environmental Health, University of Malawi the Polytechnic, Blantyre, Malawi
| | | | - Bagrey Ngwira
- Department of Environmental Health, University of Malawi the Polytechnic, Blantyre, Malawi
| | - Wilm Quentin
- Department of Health Care Management, Technische Universität Berlin, Berlin, Germany
| | - Florian Marks
- Epidemiology, Public Health, Impact, International Vaccine Institute, Gwanak-gu, The Republic of Korea
- Cambridge School of Clinical Medicine, Cambridge Biomedical Campus, Cambridge Institute of Therapeutic Immunology and Infectious Disease, Cambridge, UK
| | - Vittal Mogasale
- Policy and Economic Research, International Vaccine Institute, Seoul, The Republic of Korea
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Fuente D, Mosites E, Bressler S, Eichelberger L, Lefferts B, January G, Singleton R, Thomas T. Health-related economic benefits of universal access to piped water in Arctic communities: Estimates for the Yukon-Kuskokwim Delta region of Alaska. Int J Hyg Environ Health 2022; 240:113915. [DOI: 10.1016/j.ijheh.2021.113915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 12/27/2021] [Accepted: 12/27/2021] [Indexed: 11/25/2022]
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Ahmed S, Dorin F, Satter SM, Sarker AR, Sultana M, Gastanaduy PA, Parashar U, Tate JE, Heffelfinger JD, Gurley ES, Khan JAM. The economic burden of rotavirus hospitalization among children < 5 years of age in selected hospitals in Bangladesh. Vaccine 2021; 39:7082-7090. [PMID: 34756769 DOI: 10.1016/j.vaccine.2021.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 09/16/2021] [Accepted: 10/04/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Rotavirus is a common cause of severe acute gastroenteritis among young children. Estimation of the economic burden would provide informed decision about investment on prevention strategies (e.g., vaccine and/or behavior change), which has been a potential policy discussion in Bangladesh for several years. METHODS We estimated the societal costs of children <5 years for hospitalization from rotavirus gastroenteritis (RVGE) and incidences of catastrophic health expenditure. A total of 360 children with stool specimens positive for rotavirus were included in this study from 6 tertiary hospitals (3 public and 3 private). We interviewed the caregiver of the patient and hospital staff to collect cost from patient and health facility perspectives. We estimated the economic cost considering 2015 as the reference year. RESULTS The total societal per-patient costs to treat RVGE in the public hospital were 126 USD (95% CI: 116-136) and total household costs were 161 USD (95% CI: 145-177) in private facilities. Direct costs constituted 38.1% of total household costs. The out-of-pocket payments for RVGE hospitalization was 23% of monthly income and 76% of households faced catastrophic healthcare expenditures due to this expense. The estimated total annual household treatment cost for the country was 10 million USD. CONCLUSIONS A substantial economic burden of RVGE in Bangladesh was observed in this study. Any prevention of RVGE through cost-effective vaccination or/and behavioural change would contribute to substantial economic benefits to Bangladesh.
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Affiliation(s)
- Sayem Ahmed
- icddr,b, Dhaka, Bangladesh; Mathematical Modelling Group, Oxford University Clinical Research Unit (OUCRU), Ho Chi Minh City, Viet Nam; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, United Kingdom.
| | | | | | - Abdur Razzaque Sarker
- icddr,b, Dhaka, Bangladesh; University of Strathclyde, Glasgow, Scotland, UK; Bangladesh Institute of Development Studies, Dhaka, Bangladesh
| | - Marufa Sultana
- icddr,b, Dhaka, Bangladesh; Deakin Health Economics, School of Health and Social Development, Deakin University, Geelong, Victoria, Australia
| | | | - Umesh Parashar
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - James D Heffelfinger
- icddr,b, Dhaka, Bangladesh; Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Emily S Gurley
- icddr,b, Dhaka, Bangladesh; John Hopkins University, Baltimore, MD, USA
| | - Jahangir A M Khan
- icddr,b, Dhaka, Bangladesh; Karolinska Institutet, Stockholm, Sweden; School of Public Health and Community Medicine, University of Gothenburg, Gothenburg, Sweden
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Sultana R, Luby SP, Gurley ES, Rimi NA, Swarna ST, Khan JAM, Nahar N, Ghosh PK, Howlader SR, Kabir H, Khan S, Jensen PKM. Cost of illness for severe and non-severe diarrhea borne by households in a low-income urban community of Bangladesh: A cross-sectional study. PLoS Negl Trop Dis 2021; 15:e0009439. [PMID: 34115764 PMCID: PMC8221788 DOI: 10.1371/journal.pntd.0009439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 06/23/2021] [Accepted: 05/03/2021] [Indexed: 01/08/2023] Open
Abstract
The illness cost borne by households, known as out-of-pocket expenditure, was 74% of the total health expenditure in Bangladesh in 2017. Calculating economic burden of diarrhea of low-income urban community is important to identify potential cost savings strategies and prioritize policy decision to improve the quality of life of this population. This study aimed to estimate cost of illness and monthly percent expenditure borne by households due diarrhea in a low-income urban settlement of Dhaka, Bangladesh. We conducted this study in East Arichpur area of Tongi township in Dhaka, Bangladesh from September 17, 2015 to July 26, 2016. We used the World Health Organization (WHO) definition of three or more loose stool in 24 hours to enroll patients and enrolled 106 severe patients and 158 non-severe patients from Tongi General Hospital, local pharmacy and study community. The team enrolled patients between the first to third day of the illness (≤ 72 hours) and continued daily follow-up by phone until recovery. We considered direct and indirect costs to calculate cost-per-episode. We applied the published incidence rate to estimate the annual cost of diarrhea. The estimated average cost of illness for patient with severe diarrhea was US$ 27.39 [95% CI: 24.55, 30.23] (2,147 BDT), 17% of the average monthly income of the households. The average cost of illness for patient with non-severe diarrhea was US$ 6.36 [95% CI: 5.19, 7.55] (499 BDT), 4% of the average monthly income of households. A single diarrheal episode substantially affects financial condition of low-income urban community residents: a severe episode can cost almost equivalent to 4.35 days (17%) and a non-severe episode can cost almost equivalent to 1 day (4%) of household’s income. Preventing diarrhea preserves health and supports financial livelihoods. The illness cost borne by households, known as out-of-pocket expenditure was 74% of the total health expenditure in Bangladesh in 2017. Most of the studies in Bangladesh that estimated the cost of diarrheal illness collected data from hospital patients and mostly targeted under-five children. Information on economic burden of diarrhea borne by households of low-income urban communities who commonly had ≤ 2 US$ dollar income per capita per day still remained unknown. We conducted this study in East Arichpur area of Tongi township in Dhaka, Bangladesh from September 2015 to July 2016 to estimate cost of illness and monthly percent expenditure borne by households due diarrhea in a low-income urban settlement of Dhaka, Bangladesh. The estimated average cost of illness for patient with severe diarrhea was US$ 27.39 (2,147 BDT) and non-severe diarrhea was US$ 6.36 (499 BDT). A single diarrheal episode substantially affects financial capability of the low-income urban community: a severe episode can cost 4.35 days (17%) and a non-severe episode can cost 1 day (4%) of income of a households. Preventing diarrhea preserves health and supports financial livelihoods.
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Affiliation(s)
- Rebeca Sultana
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
- Institute of Health Economics, University of Dhaka, Dhaka, Bangladesh
- icddr,b, Dhaka, Bangladesh
- * E-mail:
| | - Stephen P. Luby
- Stanford University, Stanford, California, United States of America
| | - Emily S. Gurley
- icddr,b, Dhaka, Bangladesh
- John Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
| | | | | | | | - Nazmun Nahar
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
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Mogasale V, Ngogoyo SM, Mogasale VV. Model-based estimation of the economic burden of cholera in Africa. BMJ Open 2021; 11:e044615. [PMID: 33757949 PMCID: PMC7993295 DOI: 10.1136/bmjopen-2020-044615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 02/13/2021] [Accepted: 03/01/2021] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES To estimate the economic burden of cholera in Africa. SETTINGS Cholera affected 44 countries in Africa. PARTICIPANTS The analysis used data from public sources in Africa published until September 2019. METHODS Based on existing data from field-based cost-of-illness studies, estimated cholera incidence rates, and reported cholera cases to WHO, this research estimates the economic burden of cholera in Africa from a societal perspective with 2015 as the base year. The estimate included out-of-pocket costs, public health system costs, productivity loss related to illness and an optional productivity loss related to premature deaths valued by the human capital approach. As various input data such as cholera incidence, hospitalisation rates and the number of workdays lost were not well defined, a series of scenario analyses and uncertainty analyses, accounting for unknowns and data variability, was conducted. Similarly, the value of time lost due to illness and deaths using the human capital approach was explored through scenario analyses. RESULTS In 2015, an estimated 1 008 642 cases in 44 African countries resulted in an economic burden of US$130 million from cholera-related illness and its treatment. When the estimated 38 104 cholera deaths were included in the analysis, the economic burden increased to US$1 billion or international $2.4 billion for the same year. At the same time, when only the 71 126 cases and 937 deaths reported to the WHO are considered, the economic burden was only US$68 million for the year 2015. The estimates of economic burden are thus heavily dependent on the cholera incidence rate, how time lost due to illness and deaths are calculated, hospitalisation rates and hospitalisation costs. CONCLUSION The findings can be used as an economic justification for cholera control in Africa and for generating value-for-money evidence to underpin Ending Cholera-A Global Roadmap to 2030 with considerations to study limitations.
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Affiliation(s)
- Vittal Mogasale
- Policy and Economic Research, International Vaccine Institute, Gwanak-gu, Korea
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Ilboudo PG, Mengel MA, Gessner BD, Ngwira B, Cavailler P, Le Gargasson JB. Cost-effectiveness of a reactive oral cholera immunization campaign using Shanchol™ in Malawi. COST EFFECTIVENESS AND RESOURCE ALLOCATION 2021; 19:17. [PMID: 33691725 PMCID: PMC7945304 DOI: 10.1186/s12962-021-00270-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 03/02/2021] [Indexed: 11/10/2022] Open
Abstract
Background Oral cholera vaccines (OCV) have been recommended as additional measures for the prevention of cholera. However, little is known about the cost-effectiveness of OCV use in sub-Saharan Africa, particularly in reactive outbreak contexts. This study aimed to investigate the cost-effectiveness of the use of OCV Shanchol in response to a cholera outbreak in the Lake Chilwa area, Malawi. Methods The Excel-based Vaccine Introduction Cost-Effectiveness model was used to assess the cost-effectiveness ratios with and without indirect protection. Model input parameters were obtained from cost evaluations and epidemiological studies conducted in Malawi and published literature. One-way sensitivity and threshold analyses of cost-effectiveness ratios were performed. Results Compared with the reference scenario i.e. treatment of cholera cases, the immunization campaign would have prevented 636 and 1 020 cases of cholera without and with indirect protection, respectively. The cost-effectiveness ratios were US$19 212 per death, US$500 per case, and US$738 per DALY averted without indirect protection. They were US$10 165 per death, US$264 per case, and US$391 per DALY averted with indirect protection. The net cost per DALY averted was sensitive to four input parameters, including case fatality rate, duration of immunity (vaccine’s protective duration), discount rate and cholera incidence. Conclusion Relative to the Malawi gross domestic product per capita, the reactive OCV campaign represented a cost-effective intervention, particularly when considering indirect vaccine effects. Results will need to be assessed in other settings, e.g., during campaigns implemented directly by the Ministry of Health rather than by international partners. Supplementary Information The online version contains supplementary material available at 10.1186/s12962-021-00270-y.
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Affiliation(s)
- Patrick G Ilboudo
- Agence de Médecine Préventive, 10 BP 638, Ouagadougou, Burkina Faso.
| | - Martin A Mengel
- Agence de Médecine Préventive, 21 boulevard Pasteur, Paris, 75015, France
| | - Bradford D Gessner
- Agence de Médecine Préventive, 21 boulevard Pasteur, Paris, 75015, France.,Pfizer Inc, Collegeville, PA, USA
| | | | - Philippe Cavailler
- Agence de Médecine Préventive, 21 boulevard Pasteur, Paris, 75015, France
| | - Jean-Bernard Le Gargasson
- Agence de Médecine Préventive, Bureau Ferney-Voltaire, Bat. JB Say, 4e, aile A, 13, chemin du Levant, Ferney-Voltaire, 01210, France
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Panda S, Chatterjee P, Deb A, Kanungo S, Dutta S. Preventing cholera in India: Synthesizing evidences through a systematic review for policy discussion on the use of oral cholera vaccine. Vaccine 2020; 38 Suppl 1:A148-A156. [DOI: 10.1016/j.vaccine.2019.07.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 06/30/2019] [Accepted: 07/05/2019] [Indexed: 01/28/2023]
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Mogasale V, Kanungo S, Pati S, Lynch J, Dutta S. The history of OCV in India and barriers remaining to programmatic introduction. Vaccine 2020; 38 Suppl 1:A41-A45. [PMID: 31982258 DOI: 10.1016/j.vaccine.2020.01.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 10/29/2019] [Accepted: 01/07/2020] [Indexed: 10/25/2022]
Abstract
Cholera-endemic Eastern India has played an important role in the development of oral cholera vaccines (OCV) through conduct of pivotal trials in Kolkata which led to the registration of the first low-cost bivalent killed whole cell OCV in India in 2009, and subsequent prequalification by the World Health Organization prequalification in 2011. Odisha hosted an influential early demonstration project for use of the vaccine in a high-risk population and provided data and lessons that were crucial input in the Vaccine Investment Strategy developed by Gavi, the Vaccine Alliance in 2013. With Gavi's decision to finance an OCV stockpile, the demand for OCV surged and vaccine has been deployed with great success worldwide in areas of need in response to outbreaks and disasters, most notably in Africa. However, although India is considered one of the highest burden countries, no further use of OCV has occurred since the demonstration project in Odisha in 2011. In this paper we will summarize the important contributions of India to the development and use of OCV and discuss the possible barriers to OCV introduction as a public health tool to control cholera.
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Affiliation(s)
- Vittal Mogasale
- International Vaccine Institute, Policy and Economic Research Department; Public Health, Access and Vaccine Epidemiology (PAVE) Unit, Seoul, South Korea
| | - Suman Kanungo
- Indian Council of Medical Research, National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - Sanghamitra Pati
- Indian Council of Medical Research, Regional Medical Research Centre, Bhubaneswar, India
| | - Julia Lynch
- International Vaccine Institute, Development & Delivery Unit, Seoul, South Korea
| | - Shanta Dutta
- Indian Council of Medical Research, National Institute of Cholera and Enteric Diseases, Kolkata, India.
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Salla MR, Sá E, Ferreira PASC, Melo NAD. Relação entre saneamento básico e saúde pública em Bissau, Guiné-Bissau. SAUDE E SOCIEDADE 2019. [DOI: 10.1590/s0104-12902019180705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023] Open
Abstract
Resumo Este artigo avalia a relação de custos entre a saúde pública e a implementação do saneamento básico na capital da Guiné-Bissau. Analisaram-se seis cenários, incluindo três opções para o sistema de esgotamento sanitário (sistema coletivo com rede coletora e estação elevatória de esgoto, sistema simplificado individual por latrina e sistema coletivo completo com rede coletora, estação elevatória e estação de tratamento de esgoto) e duas para o sistema de abastecimento de água (captação direta e sistema completo com captação, reservação e distribuição). Quanto à saúde pública, consideraram-se os custos com recursos humanos e programas de assistência social, medicamentos, vacinas e internações relacionados às doenças de veiculação hídrica, malária e cólera. A relação de custos de 4,29 no cenário mais eficiente de saneamento básico foi similar ao valor encontrado na literatura da área. Em outras palavras, para cada dólar investido no saneamento básico existe uma economia aproximada de 4,3 dólares com a saúde. Além disso, as curvas potenciais da relação de custos, em razão do cenário, são muito úteis em países pobres da África, Ásia e América Latina, regiões que carecem de dados relacionados aos gastos com saúde pública e saneamento básico.
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Affiliation(s)
| | - Elias Sá
- Universidade Federal de Uberlândia, Brasil
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Mogasale V, Mogasale VV, Hsiao A. Economic burden of cholera in Asia. Vaccine 2019; 38 Suppl 1:A160-A166. [PMID: 31611097 DOI: 10.1016/j.vaccine.2019.09.099] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 09/14/2019] [Accepted: 09/30/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND The economic burden data can provide a basis to inform investments in cholera control and prevention activities. However, treatment costs and productivity loss due to cholera are not well studied. METHODS We included Asian countries that either reported cholera cases to the World Health Organization (WHO) in 2015 or were considered cholera endemic in 2015 global burden of disease study. Public health service delivery costs for hospitalization and outpatient costs, out-of-pocket costs to patients and households, and lost productivity were extracted from literature. A probabilistic multivariate sensitivity analysis was conducted for key outputs using Monte Carlo simulation. Scenario analyses were conducted using data from the WHO cholera reports and conservative and liberal disease burden estimates. RESULTS Our analysis included 14 Asian countries that were estimated to have a total of 850,000 cholera cases and 25,500 deaths in 2015 While, the WHO cholera report documented around 60,000 cholera cases and 28 deaths. We estimated around $20.2 million (I$74.4 million) in out-of-pocket expenditures, $8.5 million (I$30.1 million) in public sector costs, and $12.1 million (I$43.7 million) in lost productivity in 2015. Lost productivity due to premature deaths was estimated to be $985.7 million (I$3,638.6 million). Our scenario analyses excluding mortality costs showed that the economic burden ranged from 20.3% ($8.3 million) to 139.3% ($57.1 million) in high and low scenarios when compared to the base case scenario ($41 million) and was least at 10.1% ($4.1 million) when estimated based on cholera cases reported to WHO. CONCLUSION The economic burden of cholera in Asia provides a better understanding of financial offsets that can be achieved, and the value of investments on cholera control measures. With a clear understanding of the limitations of the underlying assumptions, the information may be used in economic evaluations and policy decisions.
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Affiliation(s)
- Vittal Mogasale
- International Vaccine Institute, Policy and Economic Research Department, Public Health, Access and Vaccine Epidemiology Unit, Seoul, South Korea.
| | - Vijayalaxmi V Mogasale
- Department of Pediatrics, Yenepoya Medical College and Research Center, Mangalore, India
| | - Amber Hsiao
- Technische Universität Berlin, Department of Health Care Management, Berlin, Germany
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Tembo T, Simuyandi M, Chiyenu K, Sharma A, Chilyabanyama ON, Mbwili-Muleya C, Mazaba ML, Chilengi R. Evaluating the costs of cholera illness and cost-effectiveness of a single dose oral vaccination campaign in Lusaka, Zambia. PLoS One 2019; 14:e0215972. [PMID: 31150406 PMCID: PMC6544210 DOI: 10.1371/journal.pone.0215972] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 04/11/2019] [Indexed: 01/22/2023] Open
Abstract
INTRODUCTION In 2016, for the very first time, the Ministry of Health in Zambia implemented a reactive outbreak response to control the spread of cholera and vaccinated at-risk populations with a single dose of Shancol-an oral cholera vaccine (OCV). This study aimed to assess the costs of cholera illness and determine the cost-effectiveness of the 2016 vaccination campaign. METHODOLOGY From April to June 2017, we conducted a retrospective cost and cost-effectiveness analysis in three peri-urban areas of Lusaka. To estimate costs of illness from a household perspective, a systematic random sample of 189 in-patients confirmed with V. cholera were identified from Cholera Treatment Centre registers and interviewed for out-of-pocket costs. Vaccine delivery and health systems costs were extracted from financial records at the District Health Office and health facilities. The cost of cholera treatment was derived by multiplying the subsidized cost of drugs by the quantity administered to patients during hospitalisation. The cost-effectiveness analysis measured incremental cost-effectiveness ratio-cost per case averted, cost per life saved and cost per DALY averted-for a single dose OCV. RESULTS The mean cost per administered vaccine was US$1.72. Treatment costs per hospitalized episode were US$14.49-US$18.03 for patients ≤15 years old and US$17.66-US$35.16 for older patients. Whereas households incurred costs on non-medical items such as communication, beverages, food and transport during illness, a large proportion of medical costs were borne by the health system. Assuming vaccine effectiveness of 88.9% and 63%, a life expectancy of 62 years and Gross Domestic Product (GDP) per capita of US$1,500, the costs per case averted were estimated US$369-US$532. Costs per life year saved ranged from US$18,515-US$27,976. The total cost per DALY averted was estimated between US$698-US$1,006 for patients ≤15 years old and US$666-US$1,000 for older patients. CONCLUSION Our study determined that reactive vaccination campaign with a single dose of Shancol for cholera control in densely populated areas of Lusaka was cost-effective.
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Affiliation(s)
- Tannia Tembo
- Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | | | - Kanema Chiyenu
- Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - Anjali Sharma
- Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | | | | | | | - Roma Chilengi
- Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
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Richterman A, Franke MF, Constant G, Jerome G, Ternier R, Ivers LC. Food insecurity and self-reported cholera in Haitian households: An analysis of the 2012 Demographic and Health Survey. PLoS Negl Trop Dis 2019; 13:e0007134. [PMID: 30699107 PMCID: PMC6370226 DOI: 10.1371/journal.pntd.0007134] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 02/11/2019] [Accepted: 01/06/2019] [Indexed: 11/30/2022] Open
Abstract
Background Both cholera and food insecurity tend to occur in impoverished communities where poor access to food, inadequate sanitation, and an unsafe water supply often coexist. The relationship between the two, however, has not been well-characterized. Methods We performed a secondary analysis of household-level data from the 2012 Demographic and Health Survey in Haiti, a nationally and sub-nationally representative cross-sectional household survey conducted every five years. We used multivariable logistic regression to evaluate the relationship between household food security (as measured by the Household Hunger Scale) and (1) reported history of cholera since 2010 by any person in the household and (2) reported death by any person in the household from cholera (among households reporting at least one case). We performed a complete case analysis because there were <1% missing data for all variables. Results There were 13,181 households in the survey, 2,104 of which reported at least one household member with history of cholera. After adjustment for potential confounders, both moderate hunger in the household [Adjusted Odds Ratio (AOR) 1.51, 95% Confidence Interval (CI) 1.30–1.76; p <.0001] and severe hunger in the household (AOR 1.73, 95% CI 1.45–2.08; p <.0001) were significantly associated with reported history of cholera in the household. Severe hunger in the household (AOR 1.85, 95% CI 1.05–3.26; p = 0.03), but not moderate hunger in the household, was independently associated with reported death from cholera in households with at least one case of cholera. Conclusions In this study we identified an independent relationship between household food insecurity and both reported history of cholera and death from cholera in a general population. The directionality of this relationship is uncertain and should be further explored in future prospective research. In this study, we identified an independent relationship between household food insecurity, defined as a persistent lack of access to food in adequate quantity or quality and measured using the Household Hunger Scale, and reported history of cholera and death from cholera in a general population. We performed a secondary analysis of household-level data from the 2012 Demographic and Health Survey (DHS) in Haiti, a nationally and sub-nationally representative cross-sectional household survey conducted every five years. The 2012 survey was conducted during the height of the cholera epidemic, with 453,536 suspected cases and 3,835 deaths in Haiti from 2011–2012. We used multivariable logistic regression to control for measured confounders. The underlying mechanisms and directionality of the association between food insecurity and reported history of cholera are uncertain and should be explored in future prospective research. A better understanding of the relationship between food insecurity and cholera could inform both future cholera outbreak prediction and response, particularly in settings where poor food access and cholera risk factors are known to co-exist.
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Affiliation(s)
- Aaron Richterman
- Department of Medicine, Brigham & Women’s Hospital, Boston, Massachusetts, United States of America
- * E-mail:
| | - Molly F. Franke
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, United States of America
| | | | | | | | - Louise C. Ivers
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, United States of America
- Massachusetts General Hospital, Center for Global Health, Boston, Massachusetts, United States of America
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Cost of Caregivers for Treating Hospitalized Diarrheal Patients in Bangladesh. Trop Med Infect Dis 2018; 4:tropicalmed4010005. [PMID: 30587776 PMCID: PMC6473641 DOI: 10.3390/tropicalmed4010005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/15/2018] [Accepted: 12/19/2018] [Indexed: 11/16/2022] Open
Abstract
INTRODUCTION Diarrheal diseases are a global public health problem and one of the leading causes of mortality, morbidity and economic loss. The objective of the study is to estimate the economic cost of caregivers and cost distribution per diarrheal episodes in Bangladesh. METHODS This was a cross-sectional hospital-based study conducted in public hospitals in Bangladesh. A total of 801 diarrheal patients were randomly selected and interviewed during January to December 2015. Simple descriptive statistics including frequencies, percentage, mean with 95% CI and median are presented. RESULTS The overall average cost of caregivers was BDT 2243 (US$ 28.58) while only BDT 259 (US$ 3.29) was spent as out of pocket payments. Caregivers mostly spent money (US$ 1.63) for food, lodging, utility bills, and other lump sum costs followed by the transportation costs (US$ 1.57). The caregivers spent more (US$ 44.45) when they accompanied the patients who were admitted in inpatients care and almost 3.6 times higher than for out-patients care (US$ 12.42). CONCLUSIONS The study delivers an empirical evidence to the health-care programmers and policy makers about the economic cost of caregivers during diarrheal treatment care, which should be accounted for in designing future diarrheal prevention programme.
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The impact and cost-effectiveness of controlling cholera through the use of oral cholera vaccines in urban Bangladesh: A disease modeling and economic analysis. PLoS Negl Trop Dis 2018; 12:e0006652. [PMID: 30300420 PMCID: PMC6177119 DOI: 10.1371/journal.pntd.0006652] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 07/02/2018] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Cholera remains an important public health problem in major cities in Bangladesh, especially in slum areas. In response to growing interest among local policymakers to control this disease, this study estimated the impact and cost-effectiveness of preventive cholera vaccination over a ten-year period in a high-risk slum population in Dhaka to inform decisions about the use of oral cholera vaccines as a key tool in reducing cholera risk in such populations. METHODOLOGY/PRINCIPAL FINDINGS Assuming use of a two-dose killed whole-cell oral cholera vaccine to be produced locally, the number of cholera cases and deaths averted was estimated for three target group options (1-4 year olds, 1-14 year olds, and all persons 1+), using cholera incidence data from Dhaka, estimates of vaccination coverage rates from the literature, and a dynamic model of cholera transmission based on data from Matlab, which incorporates herd effects. Local estimates of vaccination costs minus savings in treatment costs, were used to obtain incremental cost-effectiveness ratios for one- and ten-dose vial sizes. Vaccinating 1-14 year olds every three years, combined with annual routine vaccination of children, would be the most cost-effective strategy, reducing incidence in this population by 45% (assuming 10% annual migration), and costing was $823 (2015 USD) for single dose vials and $591 (2015 USD) for ten-dose vials per disability-adjusted life year (DALY) averted. Vaccinating all ages one year and above would reduce incidence by >90%, but would be 50% less cost-effective ($894-1,234/DALY averted). Limiting vaccination to 1-4 year olds would be the least cost-effective strategy (preventing only 7% of cases and costing $1,276-$1,731/DALY averted), due to the limited herd effects of vaccinating this small population and the lower vaccine efficacy in this age group. CONCLUSIONS/SIGNIFICANCE Providing cholera vaccine to slum populations in Dhaka through periodic vaccination campaigns would significantly reduce cholera incidence and inequities, and be especially cost-effective if all 1-14 year olds are targeted.
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The health economics of cholera: A systematic review. Vaccine 2018; 36:4404-4424. [PMID: 29907482 DOI: 10.1016/j.vaccine.2018.05.120] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 05/27/2018] [Accepted: 05/28/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND Vibrio cholera is a major contributor of diarrheal illness that causes significant morbidity and mortality globally. While there is literature on the health economics of diarrheal illnesses more generally, few studies have quantified the cost-of-illness and cost-effectiveness of cholera-specific prevention and control interventions. The present systematic review provides a comprehensive overview of the literature specific to cholera as it pertains to key health economic measures. METHODS A systematic review was performed with no date restrictions up through February 2017 in PubMed, Econlit, Embase, Web of Science, and Cochrane Review to identify relevant health economics of cholera literature. After removing duplicates, a total of 1993 studies were screened and coded independently by two reviewers, resulting in 22 relevant studies. Data on population, methods, and results (cost-of-illness and cost-effectiveness of vaccination) were compared by country/region. All costs were adjusted to 2017 USD for comparability. RESULTS Costs per cholera case were found to be rather low: <$100 per case in most settings, even when costs incurred by patients/families and lost productivity are considered. When wider socioeconomic costs are included, estimated costs are >$1000/case. There is adequate evidence to support the economic value of vaccination for the prevention and control of cholera when vaccination is targeted at high-incidence populations and/or areas with high case fatality rates due to cholera. When herd immunity is considered, vaccination also becomes a cost-effective option for the general population and is comparable in cost-effectiveness to other routine immunizations. CONCLUSIONS Cholera vaccination is a viable short-to-medium term option, especially as the upfront costs of building water, sanitation, and hygiene (WASH) infrastructure are considerably higher for countries that face a significant burden of cholera. While WASH may be the more cost-effective solution in the long-term when implemented properly, cholera vaccination can still be a feasible, cost-effective strategy.
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Sarker AR, Sultana M, Mahumud RA, Ali N, Huda TM, Salim uzzaman M, Haider S, Rahman H, Islam Z, Khan JAM, Van Der Meer R, Morton A. Economic costs of hospitalized diarrheal disease in Bangladesh: a societal perspective. Glob Health Res Policy 2018; 3:1. [PMID: 29318195 PMCID: PMC5755417 DOI: 10.1186/s41256-017-0056-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 12/11/2017] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Diarrheal diseases are a major threat to human health and still represent a leading cause of morbidity and mortality worldwide. Although the burden of the diarrheal diseases is much lower in developed countries, it is a significant public health problem in low and middle-income countries like Bangladesh. Though diarrhea is preventable and managed with low-cost interventions, it is still the leading cause of morbidity according to the patient who sought care from public hospitals in Bangladesh indicating that significant resources are consumed in treating those patients. The aim of the study is to capture the inpatients and outpatient treatment cost of diarrheal disease and to measure the cost burden and coping mechanisms associated with diarrheal illness. METHODS This study was conducted in six randomly selected district hospitals from six divisions (larger administrative units) in Bangladesh. The study was performed from the societal perspective which means all types of costs were identified, measured and valued no matter who incurred them. Cost analysis was estimated using the guideline proposed by the World Health Organization for estimating the economic burden of diarrheal diseases. The study adopted quantitative techniques to collect the household and hospital level data including structured and semi-structured questionnaires, observation checklists, analysis of hospital database, telephone interviews and compilation of service statistics. RESULTS The average total societal cost of illness per episode was BDT 5274.02 (US $ 67.18) whereas the average inpatient and outpatient costs were BDT 8675.09 (US $ 110.51) and BDT 1853.96 (US $ 23.62) respectively. The cost burden was significantly highest for poorest households, 21.45% of household income, compared to 4.21% of the richest quintile. CONCLUSIONS Diarrheal diseases continue to be an overwhelming problem in Bangladesh. The economic impact of any public health interventions (either preventive or promotive) that can reduce the prevalence of diarrheal diseases can be estimated from the data generated from this study.
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Affiliation(s)
- Abdur Razzaque Sarker
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
- University of Strathclyde, Glasgow, UK
| | - Marufa Sultana
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Rashidul Alam Mahumud
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Nausad Ali
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Tanvir M Huda
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
- Sydney School of Public Health, Sydney Medical School, The University of Sydney, Sydney, Australia
| | - M. Salim uzzaman
- Institute of Epidemiology, Disease Control and Research, Dhaka, Bangladesh
| | - Sabbir Haider
- Health Economics Unit, Ministry of Health and Family Welfare, Dhaka, Bangladesh
| | - Hafizur Rahman
- Health Economics Unit, Ministry of Health and Family Welfare, Dhaka, Bangladesh
| | - Ziaul Islam
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
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Ilboudo PG, Huang XX, Ngwira B, Mwanyungwe A, Mogasale V, Mengel MA, Cavailler P, Gessner BD, Le Gargasson JB. Cost-of-illness of cholera to households and health facilities in rural Malawi. PLoS One 2017; 12:e0185041. [PMID: 28934285 PMCID: PMC5608291 DOI: 10.1371/journal.pone.0185041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 09/05/2017] [Indexed: 11/19/2022] Open
Abstract
Cholera remains an important public health problem in many low- and middle-income countries. Vaccination has been recommended as a possible intervention for the prevention and control of cholera. Evidence, especially data on disease burden, cost-of-illness, delivery costs and cost-effectiveness to support a wider use of vaccine is still weak. This study aims at estimating the cost-of-illness of cholera to households and health facilities in Machinga and Zomba Districts, Malawi. A cross-sectional study using retrospectively collected cost data was undertaken in this investigation. One hundred patients were purposefully selected for the assessment of the household cost-of-illness and four cholera treatment centres and one health facility were selected for the assessment conducted in health facilities. Data collected for the assessment in households included direct and indirect costs borne by cholera patients and their families while only direct costs were considered for the assessment conducted in health facilities. Whenever possible, descriptive and regression analysis were used to assess difference in mean costs between groups of patients. The average costs to patients’ households and health facilities for treating an episode of cholera amounted to US$65.6 and US$59.7 in 2016 for households and health facilities, respectively equivalent to international dollars (I$) 249.9 and 227.5 the same year. Costs incurred in treating a cholera episode were proportional to duration of hospital stay. Moreover, 52% of households used coping strategies to compensate for direct and indirect costs imposed by the disease. Both households and health facilities could avert significant treatment expenditures through a broader use of pre-emptive cholera vaccination. These findings have direct policy implications regarding priority investments for the prevention and control of cholera.
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Gupta SS, Bharati K, Sur D, Khera A, Ganguly NK, Nair GB. Why is the oral cholera vaccine not considered an option for prevention of cholera in India? Analysis of possible reasons. Indian J Med Res 2017; 143:545-51. [PMID: 27487997 PMCID: PMC4989827 DOI: 10.4103/0971-5916.187102] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Sanjukta Sen Gupta
- Translational Health Science & Technology Institute, Faridabad 121 001, Haryana, India
| | - Kaushik Bharati
- Translational Health Science & Technology Institute, Faridabad 121 001, Haryana, India
| | - Dipika Sur
- Translational Health Science & Technology Institute, Faridabad 121 001, Haryana, India
| | - Ajay Khera
- Ministry of Health & Family Welfare, Government of India, New Delhi 110 011, India
| | - N K Ganguly
- Translational Health Science & Technology Institute, Faridabad 121 001, Haryana, India
| | - G Balakrish Nair
- Translational Health Science & Technology Institute, Faridabad 121 001, Haryana, India
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Pavel MS, Chakrabarty S, Gow J. Cost of illness for outpatients attending public and private hospitals in Bangladesh. Int J Equity Health 2016; 15:167. [PMID: 27724955 PMCID: PMC5057498 DOI: 10.1186/s12939-016-0458-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Accepted: 10/03/2016] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND A central aim of Universal Health Coverage (UHC) is protection for all against the cost of illness. In a low income country like Bangladesh the cost burden of health care in tertiary facilities is likely to be significant for most citizens. This cost of an episode of illness is a relatively unexplored policy issue in Bangladesh. The objective of this study was to estimate an outpatient's total cost of illness as result of treatment in private and public hospitals in Sylhet, Bangladesh. METHODS The study used face to face interviews at three hospitals (one public and two private) to elicit cost data from presenting outpatients. Other socio-economic and demographic data was also collected. A sample of 252 outpatients were randomly selected and interviewed. The total cost of outpatients comprises direct medical costs, non-medical costs and the indirect costs of patients and caregivers. Indirect costs comprise travel and waiting times and income losses associated with treatment. RESULTS The costs of illness are significant for many of Bangladesh citizens. The direct costs are relatively minor compared to the large indirect cost burden that illness places on households. These indirect costs are mainly the result of time off work and foregone wages. Private hospital patients have higher average direct costs than public hospital patients. However, average indirect costs are higher for public hospital patients than private hospital patients by a factor of almost two. Total costs of outpatients are higher in public hospitals compared to private hospitals regardless of patient's income, gender, age or illness. CONCLUSION Overall, public hospital patients, who tend to be the poorest, bear a larger economic burden of illness and treatment than relatively wealthier private hospital patients. The large economic impacts of illness need a public policy response which at a minimum should include a national health insurance scheme as a matter of urgency.
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Affiliation(s)
- Md Sadik Pavel
- Department of Economics, Shahjalal University of Science & Technology, Sylhet, 3114 Bangladesh
| | - Sayan Chakrabarty
- Department of Economics, Shahjalal University of Science & Technology, Sylhet, 3114 Bangladesh
- Institute for Resilient Regions (IRR), University of Southern Queensland, Springfield, 4300 QLD Australia
| | - Jeff Gow
- School of Commerce, University of Southern Queensland, Toowoomba, 4350 QLD Australia
- School of Accounting, Economics and Finance, University of KwaZulu-Natal, Durban, 4000 South Africa
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Optimized oral cholera vaccine distribution strategies to minimize disease incidence: A mixed integer programming model and analysis of a Bangladesh scenario. Vaccine 2015; 33:6218-23. [DOI: 10.1016/j.vaccine.2015.09.088] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 09/18/2015] [Accepted: 09/28/2015] [Indexed: 11/24/2022]
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Mogasale V, Kar SK, Kim JH, Mogasale VV, Kerketta AS, Patnaik B, Rath SB, Puri MK, You YA, Khuntia HK, Maskery B, Wierzba TF, Sah B. An Estimation of Private Household Costs to Receive Free Oral Cholera Vaccine in Odisha, India. PLoS Negl Trop Dis 2015; 9:e0004072. [PMID: 26352143 PMCID: PMC4564266 DOI: 10.1371/journal.pntd.0004072] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 08/19/2015] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Service provider costs for vaccine delivery have been well documented; however, vaccine recipients' costs have drawn less attention. This research explores the private household out-of-pocket and opportunity costs incurred to receive free oral cholera vaccine during a mass vaccination campaign in rural Odisha, India. METHODS Following a government-driven oral cholera mass vaccination campaign targeting population over one year of age, a questionnaire-based cross-sectional survey was conducted to estimate private household costs among vaccine recipients. The questionnaire captured travel costs as well as time and wage loss for self and accompanying persons. The productivity loss was estimated using three methods: self-reported, government defined minimum daily wages and gross domestic product per capita in Odisha. FINDINGS On average, families were located 282.7 (SD = 254.5) meters from the nearest vaccination booths. Most family members either walked or bicycled to the vaccination sites and spent on average 26.5 minutes on travel and 15.7 minutes on waiting. Depending upon the methodology, the estimated productivity loss due to potential foregone income ranged from $0.15 to $0.29 per dose of cholera vaccine received. The private household cost of receiving oral cholera vaccine constituted 24.6% to 38.0% of overall vaccine delivery costs. INTERPRETATION The private household costs resulting from productivity loss for receiving a free oral cholera vaccine is a substantial proportion of overall vaccine delivery cost and may influence vaccine uptake. Policy makers and program managers need to recognize the importance of private costs and consider how to balance programmatic delivery costs with private household costs to receive vaccines.
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Affiliation(s)
- Vittal Mogasale
- International Vaccine Institute (IVI), Seoul, Republic of Korea
- * E-mail:
| | - Shantanu K. Kar
- Regional Medical Research Center (RMRC), Bhubaneswar, Odisha, India
| | - Jong-Hoon Kim
- International Vaccine Institute (IVI), Seoul, Republic of Korea
| | | | - Anna S. Kerketta
- Regional Medical Research Center (RMRC), Bhubaneswar, Odisha, India
| | | | | | - Mahesh K. Puri
- International Vaccine Institute (IVI), Seoul, Republic of Korea
| | - Young Ae You
- International Vaccine Institute (IVI), Seoul, Republic of Korea
| | | | - Brian Maskery
- International Vaccine Institute (IVI), Seoul, Republic of Korea
| | | | - Binod Sah
- International Vaccine Institute (IVI), Seoul, Republic of Korea
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Sarker AR, Islam Z, Khan IA, Saha A, Chowdhury F, Khan AI, Cravioto A, Clemens JD, Qadri F, Khan JAM. Estimating the cost of cholera-vaccine delivery from the societal point of view: A case of introduction of cholera vaccine in Bangladesh. Vaccine 2015; 33:4916-21. [PMID: 26232545 DOI: 10.1016/j.vaccine.2015.07.042] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 07/13/2015] [Accepted: 07/14/2015] [Indexed: 11/16/2022]
Abstract
Cholera is a major global public health problem that causes both epidemic and endemic disease. The World Health Organization recommends oral cholera vaccines as a public health tool in addition to traditional prevention practices and treatments in both epidemic and endemic settings. In many developing countries like Bangladesh, the major issue concerns the affordability of this vaccine. In February 2011, a feasibility study entitled, "Introduction of Cholera Vaccine in Bangladesh (ICVB)", was conducted for a vaccination campaign using inactivated whole-cell cholera vaccine (Shanchol) in a high risk area of Mirpur, Dhaka. Empirical data obtained from this trial was used to determine the vaccination cost for a fully immunized person from the societal perspective. A total of 123,661 people were fully vaccinated receiving two doses of the vaccine, while 18,178 people received one dose of the same vaccine. The total cost for vaccine delivery was US$ 492,238 giving a total vaccination cost per fully-vaccinated individual of US$ 3.98. The purchase cost of the vaccine accounted for 58% of the overall cost of vaccination. Attempts to reduce the per-dose cost of the vaccine are likely to have a large impact on the cost of similar vaccination campaigns in the future.
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Affiliation(s)
- Abdur Razzaque Sarker
- International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Ziaul Islam
- International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Iqbal Ansary Khan
- Institute of Epidemiology, Disease Control and Research (IEDCR), DGHS, Dhaka, Bangladesh.
| | - Amit Saha
- International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Fahima Chowdhury
- International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Ashraful Islam Khan
- International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Alejandro Cravioto
- International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - John David Clemens
- International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Firdausi Qadri
- International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
| | - Jahangir A M Khan
- International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh; Liverpool School of Tropical Medicine, Pembroke Place, United Kingdom; Karolinska Institutet, Stockholm, Sweden.
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Bartsch SM, Lee BY. Economics and financing of vaccines for diarrheal diseases. Hum Vaccin Immunother 2014; 10:1568-81. [PMID: 24755623 DOI: 10.4161/hv.28885] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The considerable burden of infectious disease-caused diarrhea around the world has motivated the continuing development of a number of vaccine candidates over the past several decades with some reaching the market. As with all major public health interventions, understanding the economics and financing of vaccines against diarrheal diseases is essential to their development and implementation. This review focuses on each of the major infectious pathogens that commonly cause diarrhea, the current understanding of their economic burden, the status of vaccine development, and existing economic evaluations of the vaccines. While the literature on the economics and financing of vaccines against diarrhea diseases is growing, there is considerable room for more inquiry. Substantial gaps exist for many pathogens, circumstances, and effects. Economics and financing studies are integral to vaccine development and implementation.
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Affiliation(s)
- Sarah M Bartsch
- Public Health Computational and Operations Research (PHICOR); Johns Hopkins Bloomberg School of Public Health; Baltimore, MD USA; Department of Industrial Engineering; University of Pittsburgh; Pittsburgh, PA USA
| | - Bruce Y Lee
- Public Health Computational and Operations Research (PHICOR); Johns Hopkins Bloomberg School of Public Health; Baltimore, MD USA
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Deen J, Von Seidlein L, Clemens JD. Issues and Challenges of Public-Health Research in Developing Countries. MANSON'S TROPICAL INFECTIOUS DISEASES 2014. [PMCID: PMC7149969 DOI: 10.1016/b978-0-7020-5101-2.00006-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sarker AR, Islam Z, Khan IA, Saha A, Chowdhury F, Khan AI, Qadri F, Khan JAM. Cost of illness for cholera in a high risk urban area in Bangladesh: an analysis from household perspective. BMC Infect Dis 2013; 13:518. [PMID: 24188717 PMCID: PMC4228304 DOI: 10.1186/1471-2334-13-518] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2013] [Accepted: 10/30/2013] [Indexed: 12/02/2022] Open
Abstract
Background Cholera poses a substantial health burden to developing countries such as Bangladesh. In this study, the objective is to estimate the economic burden of cholera treatments incurred by households. The study was carried out in the context of a large vaccine trial in an urban area of Bangladesh. Methods The study used a combination of prospective and retrospective incidence-based cost analyses of cholera illness per episode per household. A total of 394 confirmed cholera hospitalized cases were identified and treated in the study area during June–October 2011. Households with cholera patients were interviewed within 15 days after discharge from hospitals or clinics. To estimate the total cost of cholera illness a structured questionnaire was used, which included questions on direct medical costs, non-medical costs, and the indirect costs of patients and caregivers. Results The average total household cost of treatment for an episode of cholera was US$30.40. Total direct and indirect costs constituted 24.6% (US$7.40) and 75.4% (US$23.00) of the average total cost, respectively. The cost for children under 5 years of age (US$21.50) was higher than that of children aged 5–14 years (US$17.50). The direct cost of treatment was similar for male and female patients, but the indirect cost was higher for males. Conclusion Our study suggests that by preventing one cholera episode (3 days on an average), we can avert a total cost of 2,278.50 BDT (US$30.40) per household. Among medical components, medicines are the largest cost driver. No clear socioeconomic gradient emerged from our study, but limited demographic patterns were observed in the cost of illness. By preventing cholera cases, large production losses can be reduced.
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Affiliation(s)
- Abdur Razzaque Sarker
- Enteric Vaccine, Centre for Vaccine Sciences, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.
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Schaetti C, Sundaram N, Merten S, Ali SM, Nyambedha EO, Lapika B, Chaignat CL, Hutubessy R, Weiss MG. Comparing sociocultural features of cholera in three endemic African settings. BMC Med 2013; 11:206. [PMID: 24047241 PMCID: PMC4016292 DOI: 10.1186/1741-7015-11-206] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 08/15/2013] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Cholera mainly affects developing countries where safe water supply and sanitation infrastructure are often rudimentary. Sub-Saharan Africa is a cholera hotspot. Effective cholera control requires not only a professional assessment, but also consideration of community-based priorities. The present work compares local sociocultural features of endemic cholera in urban and rural sites from three field studies in southeastern Democratic Republic of Congo (SE-DRC), western Kenya and Zanzibar. METHODS A vignette-based semistructured interview was used in 2008 in Zanzibar to study sociocultural features of cholera-related illness among 356 men and women from urban and rural communities. Similar cross-sectional surveys were performed in western Kenya (n = 379) and in SE-DRC (n = 360) in 2010. Systematic comparison across all settings considered the following domains: illness identification; perceived seriousness, potential fatality and past household episodes; illness-related experience; meaning; knowledge of prevention; help-seeking behavior; and perceived vulnerability. RESULTS Cholera is well known in all three settings and is understood to have a significant impact on people's lives. Its social impact was mainly characterized by financial concerns. Problems with unsafe water, sanitation and dirty environments were the most common perceived causes across settings; nonetheless, non-biomedical explanations were widespread in rural areas of SE-DRC and Zanzibar. Safe food and water and vaccines were prioritized for prevention in SE-DRC. Safe water was prioritized in western Kenya along with sanitation and health education. The latter two were also prioritized in Zanzibar. Use of oral rehydration solutions and rehydration was a top priority everywhere; healthcare facilities were universally reported as a primary source of help. Respondents in SE-DRC and Zanzibar reported cholera as affecting almost everybody without differentiating much for gender, age and class. In contrast, in western Kenya, gender differentiation was pronounced, and children and the poor were regarded as most vulnerable to cholera. CONCLUSIONS This comprehensive review identified common and distinctive features of local understandings of cholera. Classical treatment (that is, rehydration) was highlighted as a priority for control in the three African study settings and is likely to be identified in the region beyond. Findings indicate the value of insight from community studies to guide local program planning for cholera control and elimination.
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Affiliation(s)
- Christian Schaetti
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Socinstrasse 57, PO Box, 4002, Basel, Switzerland
- University of Basel, Petersplatz 1, 4003 Basel, Switzerland
| | - Neisha Sundaram
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Socinstrasse 57, PO Box, 4002, Basel, Switzerland
- University of Basel, Petersplatz 1, 4003 Basel, Switzerland
| | - Sonja Merten
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Socinstrasse 57, PO Box, 4002, Basel, Switzerland
- University of Basel, Petersplatz 1, 4003 Basel, Switzerland
| | - Said M Ali
- Public Health Laboratory Ivo de Carneri, PO Box 122, Wawi, Chake-Chake, Pemba, Zanzibar, United Republic of Tanzania
| | - Erick O Nyambedha
- Department of Sociology and Anthropology, Maseno University, Private Bag, Maseno, Kenya
| | - Bruno Lapika
- Department of Anthropology, University of Kinshasa, PO Box 127, Kinshasa XI, Democratic Republic of Congo
| | - Claire-Lise Chaignat
- Global Task Force on Cholera Control, World Health Organization, 20 Avenue Appia, 1211 Geneva 27, Switzerland
| | - Raymond Hutubessy
- Initiative for Vaccine Research, World Health Organization, 20 Avenue Appia, 1211 Geneva 27, Switzerland
| | - Mitchell G Weiss
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Socinstrasse 57, PO Box, 4002, Basel, Switzerland
- University of Basel, Petersplatz 1, 4003 Basel, Switzerland
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30
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Nghiem LTP, Soliman T, Yeo DCJ, Tan HTW, Evans TA, Mumford JD, Keller RP, Baker RHA, Corlett RT, Carrasco LR. Economic and environmental impacts of harmful non-indigenous species in southeast Asia. PLoS One 2013; 8:e71255. [PMID: 23951120 PMCID: PMC3739798 DOI: 10.1371/journal.pone.0071255] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 06/27/2013] [Indexed: 11/26/2022] Open
Abstract
Harmful non-indigenous species (NIS) impose great economic and environmental impacts globally, but little is known about their impacts in Southeast Asia. Lack of knowledge of the magnitude of the problem hinders the allocation of appropriate resources for NIS prevention and management. We used benefit-cost analysis embedded in a Monte-Carlo simulation model and analysed economic and environmental impacts of NIS in the region to estimate the total burden of NIS in Southeast Asia. The total annual loss caused by NIS to agriculture, human health and the environment in Southeast Asia is estimated to be US$33.5 billion (5th and 95th percentile US$25.8–39.8 billion). Losses and costs to the agricultural sector are estimated to be nearly 90% of the total (US$23.4–33.9 billion), while the annual costs associated with human health and the environment are US$1.85 billion (US$1.4–2.5 billion) and US$2.1 billion (US$0.9–3.3 billion), respectively, although these estimates are based on conservative assumptions. We demonstrate that the economic and environmental impacts of NIS in low and middle-income regions can be considerable and that further measures, such as the adoption of regional risk assessment protocols to inform decisions on prevention and control of NIS in Southeast Asia, could be beneficial.
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Affiliation(s)
- Le T. P. Nghiem
- Department of Biological Sciences, National University of Singapore, Singapore, Republic of Singapore
| | - Tarek Soliman
- Department of Biological Sciences, National University of Singapore, Singapore, Republic of Singapore
| | - Darren C. J. Yeo
- Department of Biological Sciences, National University of Singapore, Singapore, Republic of Singapore
| | - Hugh T. W. Tan
- Department of Biological Sciences, National University of Singapore, Singapore, Republic of Singapore
| | - Theodore A. Evans
- Department of Biological Sciences, National University of Singapore, Singapore, Republic of Singapore
| | - John D. Mumford
- Centre for Environmental Policy, Imperial College London, London, United Kingdom
| | - Reuben P. Keller
- Institute of Environmental Sustainability, Loyola University Chicago, Chicago, Illinois, United States of America
| | - Richard H. A. Baker
- Food and Environment Research Agency, Department for Environment, Food and Rural Affairs, York, Yorkshire, United Kingdom
| | - Richard T. Corlett
- Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan, China
| | - Luis R. Carrasco
- Department of Biological Sciences, National University of Singapore, Singapore, Republic of Singapore
- * E-mail:
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Wahed T, Kaukab SST, Saha NC, Khan IA, Khanam F, Chowdhury F, Saha A, Khan AI, Siddik AU, Cravioto A, Qadri F, Uddin J. Knowledge of, attitudes toward, and preventive practices relating to cholera and oral cholera vaccine among urban high-risk groups: findings of a cross-sectional study in Dhaka, Bangladesh. BMC Public Health 2013; 13:242. [PMID: 23509860 PMCID: PMC3608226 DOI: 10.1186/1471-2458-13-242] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Accepted: 03/12/2013] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND In endemic countries such as Bangladesh, consequences of cholera place an enormous financial and social burden on patients and their families. Cholera vaccines not only provide health benefits to susceptible populations but also have effects on the earning capabilities and financial stability of the family. Community-based research and evaluations are necessary to understand perceptions about and practices of the community relating to cholera and oral cholera vaccines. This may help identify the ways in which such vaccines may be successfully introduced, and other preventive measures can be implemented. The present study assessed the knowledge of, attitudes toward, and preventive practices relating to cholera and oral cholera vaccine among an urban population residing in a high cholera-prone setting in Dhaka, Bangladesh. METHODS This cross-sectional study was conducted in an area of high cholera prevalence in 15 randomly-selected clusters in Mirpur, Dhaka city. A study team collected data through a survey and in-depth interviews during December 2010-February 2011. RESULTS Of 2,830 families included in the final analysis, 23% could recognize cholera as acute watery diarrhea and 16% had ever heard of oral cholera vaccine. About 54% of the respondents had poor knowledge about cholera-related issues while 97% had a positive attitude toward cholera and oral cholera vaccine. One-third showed poor practice relating to the prevention of cholera.The findings showed a significant (p < 0.05) association between the respondents' knowledge and sex, education, occupation, monthly overall household expenditure, attitudes and practice. In the adjusted model, male sex, having a lower monthly overall household expenditure, and having a less positive attitude toward cholera were the significant predictors to having poor knowledge. CONCLUSIONS The findings suggest the strengthening of health education activities to improve knowledge on cholera, its prevention and treatment and information on cholera vaccination among high-risk populations. The data also underscore the potential of mass cholera vaccination to prevent and control cholera.
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Affiliation(s)
- Tasnuva Wahed
- Centre for Vaccine Sciences, icddr,b, Dhaka, Bangladesh
| | | | | | | | | | | | - Amit Saha
- Centre for Vaccine Sciences, icddr,b, Dhaka, Bangladesh
| | | | | | | | | | - Jasim Uddin
- Centre for Equity and Health Systems, icddr,b, Dhaka, Bangladesh
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Schaetti C, Weiss MG, Ali SM, Chaignat CL, Khatib AM, Reyburn R, Duintjer Tebbens RJ, Hutubessy R. Costs of illness due to cholera, costs of immunization and cost-effectiveness of an oral cholera mass vaccination campaign in Zanzibar. PLoS Negl Trop Dis 2012; 6:e1844. [PMID: 23056660 PMCID: PMC3464297 DOI: 10.1371/journal.pntd.0001844] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Accepted: 08/20/2012] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The World Health Organization (WHO) recommends oral cholera vaccines (OCVs) as a supplementary tool to conventional prevention of cholera. Dukoral, a killed whole-cell two-dose OCV, was used in a mass vaccination campaign in 2009 in Zanzibar. Public and private costs of illness (COI) due to endemic cholera and costs of the mass vaccination campaign were estimated to assess the cost-effectiveness of OCV for this particular campaign from both the health care provider and the societal perspective. METHODOLOGY/PRINCIPAL FINDINGS Public and private COI were obtained from interviews with local experts, with patients from three outbreaks and from reports and record review. Cost data for the vaccination campaign were collected based on actual expenditure and planned budget data. A static cohort of 50,000 individuals was examined, including herd protection. Primary outcome measures were incremental cost-effectiveness ratios (ICER) per death, per case and per disability-adjusted life-year (DALY) averted. One-way sensitivity and threshold analyses were conducted. The ICER was evaluated with regard to WHO criteria for cost-effectiveness. Base-case ICERs were USD 750,000 per death averted, USD 6,000 per case averted and USD 30,000 per DALY averted, without differences between the health care provider and the societal perspective. Threshold analyses using Shanchol and assuming high incidence and case-fatality rate indicated that the purchase price per course would have to be as low as USD 1.2 to render the mass vaccination campaign cost-effective from a health care provider perspective (societal perspective: USD 1.3). CONCLUSIONS/SIGNIFICANCE Based on empirical and site-specific cost and effectiveness data from Zanzibar, the 2009 mass vaccination campaign was cost-ineffective mainly due to the relatively high OCV purchase price and a relatively low incidence. However, mass vaccination campaigns in Zanzibar to control endemic cholera may meet criteria for cost-effectiveness under certain circumstances, especially in high-incidence areas and at OCV prices below USD 1.3.
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Affiliation(s)
- Christian Schaetti
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Mitchell G. Weiss
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Said M. Ali
- Public Health Laboratory Ivo de Carneri, Ministry of Health of Zanzibar, Chake-Chake, Pemba, United Republic of Tanzania
| | - Claire-Lise Chaignat
- Global Task Force on Cholera Control, World Health Organization, Geneva, Switzerland
| | - Ahmed M. Khatib
- Ministry of Health of Zanzibar, Zanzibar, United Republic of Tanzania
| | | | | | - Raymond Hutubessy
- Initiative for Vaccine Research, World Health Organization, Geneva, Switzerland
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