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Sow A, Smekens T, De Man J, De Spigelaere M, Vanlerberghe V, Van Dormael M, Criel B. [Quality of health worker-patient communication: What are the benefits of integrating mental health into front-line services in Guinea?]. Rev Epidemiol Sante Publique 2021; 69:287-295. [PMID: 34272084 DOI: 10.1016/j.respe.2021.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/07/2020] [Revised: 06/13/2021] [Accepted: 06/14/2021] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND Patient-centred care presupposes communication based on empathy, active listening and dialogue. Our study examines the effects of integrating mental health in multi-purpose health centres on health workers' communication with patients who consult for problems unrelated to mental health. The objective is to compare the quality of communication in health centres where staff have received specific training in the management of mental disorders (SM+) compared to those without such training (SM-). METHODS The study was conducted among 18 health workers in charge of primary curative consultations in 12 non-governmental health centers in Guinea: 7 health workers in 4 SM+ health centers and 11 health workers in 8 SM- health centres. The study is based on mixed methods: observation, semi-structured and group interviews. The Global Consultation Rating Scale (GCRS) was applied to assess patient-centered communication. RESULTS The SM+ GCRS scores obtained by SM+s during observations are generally higher than the SM- scores. The odds of having a "good quality" consultation are almost 3 times higher in SM+ than in SM- for some steps in the consultation process. The SM+ discourse is more patient-centered, and differs from the more biomedical discourse of SM-. SM- health workers do not consider all of the stages of a patient-centred consultation to be applicable and recommend "leapfrogging". On the contrary, SM+ health workers consider all stages to be important and are convinced that the integration of mental health has improved their communication through the training they have received and the practice of caring for persons with mental disorders. CONCLUSION The integration of mental health into primary care provision represents an opportunity to improve the quality of care in its "patient-centred care" dimension. That said, optimal development of patient-centred care presupposes favorable structural conditions.
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Affiliation(s)
- A Sow
- École de santé publique, Université Libre de Bruxelles, Route de Lennik 808 CP 594- B-1070, Bruxelles, Belgique; Faculté des sciences et techniques de la santé, Chaire de santé publique, Université Gamal Abdel Nasser, Commune de Dixinn-1017 Conakry, Guinée.
| | - T Smekens
- Institut de médecine tropicale, Nationalestraat155, 2000Anvers, Belgique
| | - J De Man
- Centre for General Practice, Department of Primary and Interdisciplinary Care, University of Antwerp, Doornstraat 331, 2610 Wilrijk, Antwerp, Belgium
| | - M De Spigelaere
- École de santé publique, Université Libre de Bruxelles, Route de Lennik 808 CP 594- B-1070, Bruxelles, Belgique
| | - V Vanlerberghe
- Institut de médecine tropicale, Nationalestraat155, 2000Anvers, Belgique
| | - M Van Dormael
- Institut de médecine tropicale, Nationalestraat155, 2000Anvers, Belgique
| | - B Criel
- Institut de médecine tropicale, Nationalestraat155, 2000Anvers, Belgique
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Vanlerberghe V, De Craene S, Kestelyn P. Let this be lattice? Dendritiform erosion in lattice dystrophy type I, a source of confusion. Int Ophthalmol 2014; 35:121-3. [PMID: 25432880 DOI: 10.1007/s10792-014-0021-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 11/14/2014] [Indexed: 11/28/2022]
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Perez D, Lefevre P, Castro M, Sanchez L, Toledo ME, Vanlerberghe V, Van der Stuyft P. Process-oriented fidelity research assists in evaluation, adjustment and scaling-up of community-based interventions. Health Policy Plan 2010; 26:413-22. [DOI: 10.1093/heapol/czq077] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Vanlerberghe V, Villegas E, Jirarojwatana S, Santana N, Trongtorkit Y, Jirarojwatana R, Srisupap W, Lefèvre P, Van der Stuyft P. Determinants of uptake, short-term and continued use of insecticide-treated curtains and jar covers for dengue control. Trop Med Int Health 2010; 16:162-73. [PMID: 21044236 DOI: 10.1111/j.1365-3156.2010.02668.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To evaluate the acceptance and long-term use of insecticide-treated (IT) materials for dengue vector control. METHODS In 2007, IT jar covers and/or curtains (PermaNet®) were distributed under routine conditions to 4101 households (10 clusters) in Venezuela and to 2032 households (22 clusters) in Thailand. The use of IT tools was measured at distribution (uptake), at 5/6 months (short-term use) and at 18/22 months (continued use) after distribution. Determinants of use were assessed with logistic regression analysis. RESULTS The uptake of IT curtains was 76.7% in Venezuela and 92.3% in Thailand. It was associated with being a resident for >5 years (OR Venezuela 3.0 95% CI 2.0-4.4; OR Thailand 3.5 95% CI 1.7-7.3) and with pre-intervention use of ordinary curtains (OR Venezuela 2.2 95% CI 1.4-3.6). The continued use decreased significantly to 38.4% of households in Venezuela and 59.7% in Thailand and was, conditional on short-term use, only determined by the perceived effectiveness of IT curtains (OR Venezuela 13.0 95%CI 8.7-19.5; OR Thailand 4.9 95% CI 3.1-7.8). Disease knowledge and pre-intervention perception of mosquito nuisance were not associated with IT curtains' uptake or use. The uptake of IT jar covers in Venezuela was 21.5% and essentially determined by the presence of uncovered jars in the household (OR 32.5 95% CI 14.5-72.6). Their continued use, conditional on short-time use, was positively associated with the household use of Abate® (OR 7.8 95% CI 2.1-28.9). CONCLUSION The use of IT curtains rapidly declines over time. Continued use is mainly determined by the perceived effectiveness of the tool. This poses a real challenge if IT curtains are to be introduced in dengue control programmes.
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Affiliation(s)
- V Vanlerberghe
- Epidemiology and Disease Control Unit, Public Health Department, Institute of Tropical Medicine, Antwerp, Belgium.
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Vanlerberghe V, Trongtokit Y, Cremonini L, Jirarojwatana S, Apiwathnasorn C, Van der Stuyft P. Residual insecticidal activity of long-lasting deltamethrin-treated curtains after 1 year of household use for dengue control. Trop Med Int Health 2010; 15:1067-71. [PMID: 20561312 DOI: 10.1111/j.1365-3156.2010.02582.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To evaluate the residual insecticidal activity of the PermaNet(®) curtains on Aedes aegypti after 1 year of use in Thai households and to assess the influence of sun and dust exposure, washing practices and detergent use. METHODS We sampled UV-protected PermaNet(®) curtains made of a long-lasting deltamethrin-[55 mg/m(2)] treated polyester netting, before (10 curtains) and after 8 (10 curtains) and 12 months (66 curtains) of household use in a field site in Chon Buri, Thailand. We assessed the residual insecticidal activity of the curtains by standard WHO bioassay, using a deltamethrin-susceptible insectarium Aedes aegypti strain. RESULTS Mosquito mortality was 100% before distribution, 100% at 8 months and 98.2% (95% CI 97.9-98.5) at 12 months of use. Sunlight, hand-washing and detergent use had no effect on the residual insecticidal activity after 12 months. However, the mosquito survival rate increased by a factor of 6.4 (95% CI 3.5-11.8) on machine-washed curtains and by a factor of 2.0 (95% CI 1.4-2.9) on curtains not covered by dust. CONCLUSION The residual insecticidal activity of PermaNet® curtains remains high after 12 months use under field conditions.
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Affiliation(s)
- V Vanlerberghe
- Epidemiology and Disease Control Unit, Institute of Tropical Medicine, Antwerp, Belgium.
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Vanlerberghe V, Toledo ME, Rodríguez M, Gómez D, Baly A, Benítez JR, Van der Stuyft P. Community involvement in dengue vector control: cluster randomised trial. MEDICC Rev 2010; 12:41-47. [PMID: 20387334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
OBJECTIVE To assess the effectiveness of an integrated community based environmental management strategy to control Aedes aegypti, the vector of dengue, compared with a routine strategy. Design Cluster randomised trial. Setting Guantanamo, Cuba. Participants 32 circumscriptions (around 2000 inhabitants each). Interventions The circumscriptions were randomly allocated to control clusters (n=16) comprising routine Aedes control programme (entomological surveillance, source reduction, selective adulticiding, and health education) and to intervention clusters (n=16) comprising the routine Aedes control programme combined with a community based environmental management approach. MAIN OUTCOME MEASURES The primary outcome was levels of Aedes infestation: house index (number of houses positive for at least one container with immature stages of Ae aegypti per 100 inspected houses), Breteau index (number of containers positive for immature stages of Ae aegypti per 100 inspected houses), and the pupae per inhabitant statistic (number of Ae aegypti pupae per inhabitant). RESULTS All clusters were subjected to the intended intervention; all completed the study protocol up to February 2006 and all were included in the analysis. At baseline the Aedes infestation levels were comparable between intervention and control clusters: house index 0.25% v 0.20%, pupae per inhabitant 0.44 x 10(-3) v 0.29 x 10(-3). At the end of the intervention these indices were significantly lower in the intervention clusters: rate ratio for house indices 0.49 (95% confidence interval 0.27 to 0.88) and rate ratio for pupae per inhabitant 0.27 (0.09 to 0.76). CONCLUSION A community based environmental management embedded in a routine control programme was effective at reducing levels of Aedes infestation. Trial Registration Current Controlled Trials ISRCTN88405796.
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Affiliation(s)
- V Vanlerberghe
- Epidemiology and Disease Control Unit, Public Health Department, Institute of Tropical Medicine, Antwerp, Belgium.
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Sanchez L, Perez D, Cruz G, Castro M, Kourí G, Shkedy Z, Vanlerberghe V, Van der Stuyft P. Intersectoral coordination, community empowerment and dengue prevention: six years of controlled interventions in Playa Municipality, Havana, Cuba. Trop Med Int Health 2009; 14:1356-64. [PMID: 19840350 DOI: 10.1111/j.1365-3156.2009.02379.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To document the process, outcome and effectiveness of a community-based intervention for dengue control. METHODS The primary intervention, focused on strengthening intersectoral coordination, was initiated by researchers in January 2000 in a pilot area in Playa municipality, Havana. In August 2002 health authorities extended the intervention to neighbouring areas, one of which was selected for evaluation. In August 2003 a complementary strategy, focused on community empowerment, was initiated in half of the pilot area. In our control area, routine dengue activities continued throughout the study period. Longitudinal process assessment was carried out using document analysis, interviews and group discussions. Random population surveys in 1999, 2002 and 2005 assessed levels of participation and behavioural changes. Entomological surveillance data from 1999 to 2005 were used to determine effectiveness. RESULTS Mean scores for participation in the pilot area were 1.6, 3.4 and 4.4 at baseline, and 2 years after initiating intersectoral coordination and intersectoral coordination plus community empowerment interventions, respectively. While in the control area little behavioural change was observed over time, changes were considerable in the pilot and extension areas, with 80% of households involved in the community empowerment intervention showed adequate behavioural patterns. The pilot and extension areas attained comparable entomological effectiveness with significantly lower Breteau indices (BIs) than the control area. The pilot (sub-) area with the community empowerment intervention reached BIs below 0.1 that continued to be significantly lower than the one in the control area until the end of the study. CONCLUSION The study showed a trend in the levels and quality of participation, behavioural change and effectiveness of Aedes control from the routine activities only over an intervention with intersectoral coordination to one that combined intersectoral coordination and community empowerment approach.
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Affiliation(s)
- L Sanchez
- Institute of Tropical Medicine "Pedro Kouri", Havana City, Cuba.
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Vanlerberghe V, Singh SP, Paudel IS, Ostyn B, Picado A, Sánchez A, Rijal S, Sundar S, Davies C, Boelaert M. Determinants of bednet ownership and use in visceral leishmaniasis-endemic areas of the Indian subcontinent. Trop Med Int Health 2009; 15:60-7. [PMID: 19917036 DOI: 10.1111/j.1365-3156.2009.02433.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To document ownership and use of bednets with its determinants in the visceral leishmaniasis (VL)-endemic region where mainly non-insecticide impregnated nets are available through commercial channels, and bednets are being considered as a leishmaniasis vector control measure. METHODS In August-September 2006, semi-structured household (HH) questionnaires and observation guides were used in a random sample of 1330 HHs in VL-endemic districts of India and Nepal to collect data on VL knowledge, HH socio-economic status, bednet ownership and use patterns. An asset index was constructed to allow wealth ranking of the HH. A binary logistic response General Estimating Equations model was fitted to evaluate the determinants of bednet ownership and use. RESULTS The proportion of HHs with at least one bednet purchased on the commercial market was 81.5% in India and 70.2% in Nepal. The bednets were used in all seasons by 50.6% and 54.1% of the Indian and Nepalese HH owning a bed net. There was striking inequity in bednet ownership: only 38.3% of the poorest quintile in Nepal owned at least one net, compared to 89.7% of the wealthiest quintile. In India, the same trend was observed though somewhat less pronounced (73.6%vs. 93.7%). Multivariate analysis showed that poverty was an important independent predictor for not having a bednet in the HH [OR 5.39 (2.90-10.03)]. CONCLUSION Given the inequity in commercial bednet ownership, free distribution of insecticide-treated bednets to the general population seems imperative to achieve a mass effect on vector density.
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Affiliation(s)
- V Vanlerberghe
- Epidemiology and Disease Control Unit, Department of Public Health, Institute of Tropical Medicine, Antwerp, Belgium.
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Abstract
OBJECTIVE To assess the effectiveness of an integrated community based environmental management strategy to control Aedes aegypti, the vector of dengue, compared with a routine strategy. DESIGN Cluster randomised trial. SETTING Guantanamo, Cuba. PARTICIPANTS 32 circumscriptions (around 2000 inhabitants each). INTERVENTIONS The circumscriptions were randomly allocated to control clusters (n=16) comprising routine Aedes control programme (entomological surveillance, source reduction, selective adulticiding, and health education) and to intervention clusters (n=16) comprising the routine Aedes control programme combined with a community based environmental management approach. MAIN OUTCOME MEASURES The primary outcome was levels of Aedes infestation: house index (number of houses positive for at least one container with immature stages of Ae aegypti per 100 inspected houses), Breteau index (number of containers positive for immature stages of Ae aegypti per 100 inspected houses), and the pupae per inhabitant statistic (number of Ae aegypti pupae per inhabitant). RESULTS All clusters were subjected to the intended intervention; all completed the study protocol up to February 2006 and all were included in the analysis. At baseline the Aedes infestation levels were comparable between intervention and control clusters: house index 0.25% v 0.20%, pupae per inhabitant 0.44x10(-3) v 0.29x10(-3). At the end of the intervention these indices were significantly lower in the intervention clusters: rate ratio for house indices 0.49 (95% confidence interval 0.27 to 0.88) and rate ratio for pupae per inhabitant 0.27 (0.09 to 0.76). CONCLUSION A community based environmental management embedded in a routine control programme was effective at reducing levels of Aedes infestation. TRIAL REGISTRATION Current Controlled Trials ISRCTN88405796.
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Affiliation(s)
- V Vanlerberghe
- Epidemiology and Disease Control Unit, Public Health Department, Institute of Tropical Medicine, Nationalestraat 155, 2000 Antwerp, Belgium.
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Boelaert M, Meheus F, Sanchez A, Singh SP, Vanlerberghe V, Picado A, Meessen B, Sundar S. The poorest of the poor: a poverty appraisal of households affected by visceral leishmaniasis in Bihar, India. Trop Med Int Health 2009; 14:639-44. [PMID: 19392741 DOI: 10.1111/j.1365-3156.2009.02279.x] [Citation(s) in RCA: 130] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To provide data about wealth distribution in visceral leishmaniasis (VL)-affected communities compared to that of the general population of Bihar State, India. METHODS After extensive disease risk mapping, 16 clusters with high VL transmission were selected in Bihar. An exhaustive census of all households in the clusters was conducted and socio-economic household characteristics were documented by questionnaire. Data on the general Bihar population taken from the National Family Health Survey of India were used for comparison. An asset index was developed based on Principal Components Analysis and the distribution of this asset index for the VL communities was compared with that of the general population of Bihar. RESULTS 83% of households in communities with high VL attack rates belonged to the two lowest quintiles of the Bihar wealth distribution. All socio-economic indicators showed significantly lower wealth for those households. CONCLUSION Visceral leishmaniasis clearly affects the poorest of the poor in India. They are most vulnerable, as this vector-born disease is linked to poor housing and unhealthy habitats. The disease leads the affected households to more destitution because of its impact on household income and wealth. Support for the present VL elimination initiative is important in the fight against poverty.
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Affiliation(s)
- M Boelaert
- Department of Public Health, Institute of Tropical Medicine, Antwerp, Belgium
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Baly A, Toledo ME, Boelaert M, Reyes A, Vanlerberghe V, Ceballos E, Carvajal M, Maso R, La Rosa M, Denis O, Van der Stuyft P. Cost effectiveness of Aedes aegypti control programmes: participatory versus vertical. Trans R Soc Trop Med Hyg 2007; 101:578-86. [PMID: 17368696 DOI: 10.1016/j.trstmh.2007.01.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2006] [Revised: 01/18/2007] [Accepted: 01/18/2007] [Indexed: 11/27/2022] Open
Abstract
We conducted an economic appraisal of two strategies for Aedes aegypti control: a vertical versus a community-based approach. Costs were calculated for the period 2000-2002 in three pilot areas of Santiago de Cuba where a community intervention was implemented and compared with three control areas with routine vertical programme activities. Reduction in A. aegypti foci was chosen as the measure of effectiveness. The pre-intervention number of foci (614 vs. 632) and economical costs for vector control (US$243746 vs. US$263486) were comparable in the intervention and control areas. During the intervention period (2001-2002), a 13% decrease in recurrent costs for the health system was observed. Within the control areas, these recurrent relative costs remained stable. The number of A. aegypti foci in the pilot areas and the control areas fell by 459 and 467, respectively. The community-based approach was more cost effective from a health system perspective (US$964 vs. US$1406 per focus) as well as from society perspective (US$1508 vs. US$1767 per focus).
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Affiliation(s)
- A Baly
- Instituto de Medicina Tropical Pedro Kourí, Department of Epidemiology, Autopista Novia del Mediodia Km 6 1/2, La Lisa, Ciudad de La Habana, Cuba.
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Vanlerberghe V, Diap G, Guerin PJ, Meheus F, Gerstl S, Van der Stuyft P, Boelaert M. Drug policy for visceral leishmaniasis: a cost-effectiveness analysis. Trop Med Int Health 2007; 12:274-83. [PMID: 17300636 DOI: 10.1111/j.1365-3156.2006.01782.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To facilitate the choice of the best visceral leishmaniasis (VL) treatment strategy for first-line health services in (VL)-endemic areas, we compared in a formal decision analysis the cost and the cost-effectiveness of the different available options. METHODS We selected four drug regimens for VL on the basis of frequency of use, feasibility and reported efficacy studies. The point estimates and the range of plausible values of effectiveness and cost were retrieved from a literature review. A decision tree was constructed and the strategy minimizing the cost per death averted was selected. RESULTS Treatment with amphotericin B deoxycholate was the most effective approach in the baseline analysis and averted 87.2% of all deaths attributable to VL. The least expensive and the most cost-effective treatment was the miltefosine regimen, and the most expensive and the least cost-effective was AmBisome treatment. The cost of drug and medical care are the main determinants of the cost-effectiveness ranking of the alternative schemes. Sensitivity analysis showed that antimonial was competitive with miltefosine in the low-resistance regions. CONCLUSION In areas with >94% response rates to antimonials, generic sodium stibogluconate remains the most cost-effective option for VL treatment, mainly due to low drug cost. In other regions, miltefosine is the most cost-effective option of treatment, but its use as a first-line drug is limited by its teratogenicity and rapid resistance development. AmBisome in mono- or combination therapy is too expensive to compete in cost-effectiveness with the other regimens.
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Affiliation(s)
- V Vanlerberghe
- Epidemiology and Disease Control Unit, Prince Leopold Institute of Tropical Medicine, Antwerp, Belgium.
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Toledo ME, Vanlerberghe V, Baly A, Ceballos E, Valdes L, Searret M, Boelaert M, van der Stuyft P. Towards active community participation in dengue vector control: results from action research in Santiago de Cuba, Cuba. Trans R Soc Trop Med Hyg 2007; 101:56-63. [PMID: 16824565 DOI: 10.1016/j.trstmh.2006.03.006] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2005] [Revised: 03/21/2006] [Accepted: 03/31/2006] [Indexed: 10/24/2022] Open
Abstract
Community participation is advocated as essential for attaining effective dengue prevention, but knowledge of how to foster this is limited. In Santiago de Cuba, multiple small task forces were created at the neighbourhood level that included all stakeholders in the control of Aedes aegypti. The task forces assessed the perceived needs and elaborated action plans to promote specific behavioural change and to reduce environmental risks through social communication strategies and intersectoral local government activities. We monitored five dimensions of the participation process and assessed behavioural and environmental results and entomological outcomes. Participation was weak to good. At the household level, uncovered water storage containers decreased from 49.3% to 2.6% between 2000 and 2002, and removing larvicide from them dropped from 45.5% to 1%. There was a reduction of 75% in the absolute number of positive containers and a significant decrease from 1.23% to 0.35% in the house index. Local task forces, in which the interests of householders as well as vector control workers are directly represented, can lead to effective government-community partnerships that resolve problems of mutual concern.
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Affiliation(s)
- M E Toledo
- Department of Epidemiology, Instituto de Medicina Tropical Pedro Kouri, Autopista Novia del Mediodia Km 6 1/2 La Lisa, Ciudad de La Habana, Cuba.
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