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Published in: Malaria Journal 1/2016

Open Access 01-12-2016 | Case study

Successful malaria elimination in the Ecuador–Peru border region: epidemiology and lessons learned

Authors: Lyndsay K. Krisher, Jesse Krisher, Mariano Ambuludi, Ana Arichabala, Efrain Beltrán-Ayala, Patricia Navarrete, Tania Ordoñez, Mark E. Polhemus, Fernando Quintana, Rosemary Rochford, Mercy Silva, Juan Bazo, Anna M. Stewart-Ibarra

Published in: Malaria Journal | Issue 1/2016

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Abstract

Background

In recent years, malaria (Plasmodium vivax and Plasmodium falciparum) has been successfully controlled in the Ecuador–Peru coastal border region. The aim of this study was to document this control effort and to identify the best practices and lessons learned that are applicable to malaria control and to other vector-borne diseases. A proximal outcome evaluation was conducted of the robust elimination programme in El Oro Province, Ecuador, and the Tumbes Region, Peru. Data collection efforts included a series of workshops with local public health experts who played central roles in the elimination effort, review of epidemiological records from Ministries of Health, and a review of national policy documents. Key programmatic and external factors are identified that determined the success of this eradication effort.

Case description

From the mid 1980s until the early 2000s, the region experienced a surge in malaria transmission, which experts attributed to a combination of ineffective anti-malarial treatment, social-ecological factors (e.g., El Niño, increasing rice farming, construction of a reservoir), and political factors (e.g., reduction in resources and changes in management). In response to the malaria crisis, local public health practitioners from El Oro and Tumbes joined together in the mid-1990s to forge an unofficial binational collaboration for malaria control. Over the next 20 years, they effectively eradicated malaria in the region, by strengthening surveillance and treatment strategies, sharing of resources, operational research to inform policy, and novel interventions.

Discussion and evaluation

The binational collaboration at the operational level was the fundamental component of the successful malaria elimination programme. This unique relationship created a trusting, open environment that allowed for flexibility, rapid response, innovation and resilience in times of crisis, and ultimately a sustainable control programme. Strong community involvement, an extensive microscopy network and ongoing epidemiologic investigations at the local level were also identified as crucial programmatic strategies.

Conclusion

The results of this study provide key principles of a successful malaria elimination programme that can inform the next generation of public health professionals in the region, and serve as a guide to ongoing and future control efforts of other emerging vector borne diseases globally.
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Literature
2.
go back to reference Adrian J. Informe de actividades para el control del Aedes aegypti con aplicación de larvicidas—año 2014. El Oro: SNEM, Ministerio de Salud Publica; 2015. Adrian J. Informe de actividades para el control del Aedes aegypti con aplicación de larvicidas—año 2014. El Oro: SNEM, Ministerio de Salud Publica; 2015.
3.
go back to reference WHO: World Malaria Report 2013. Geneva: World Health Organization; 2013. WHO: World Malaria Report 2013. Geneva: World Health Organization; 2013.
4.
go back to reference Barat LM. Four malaria success stories: how malaria burden was successfully reduced in Brazil, Eritrea, India, and Vietnam. Am J Trop Med Hyg. 2006;74:12–6.PubMed Barat LM. Four malaria success stories: how malaria burden was successfully reduced in Brazil, Eritrea, India, and Vietnam. Am J Trop Med Hyg. 2006;74:12–6.PubMed
5.
go back to reference Quispe AM, Llanos-Cuentas A, Rodriguez H, Clendenes M, Cabezas C, Leon LM, et al. Accelerating to zero: strategies to eliminate malaria in the Peruvian Amazon. Am J Trop Med Hyg. 2016;94:1200–7.CrossRefPubMedCentral Quispe AM, Llanos-Cuentas A, Rodriguez H, Clendenes M, Cabezas C, Leon LM, et al. Accelerating to zero: strategies to eliminate malaria in the Peruvian Amazon. Am J Trop Med Hyg. 2016;94:1200–7.CrossRefPubMedCentral
6.
go back to reference Abeyasinghe RR, Galappaththy GNL, Smith Gueye C, Kahn JG, Feachem RGA. Malaria control and elimination in Sri Lanka: documenting progress and success factors in a conflict setting. PLoS ONE. 2012;7:e43162.CrossRefPubMedPubMedCentral Abeyasinghe RR, Galappaththy GNL, Smith Gueye C, Kahn JG, Feachem RGA. Malaria control and elimination in Sri Lanka: documenting progress and success factors in a conflict setting. PLoS ONE. 2012;7:e43162.CrossRefPubMedPubMedCentral
12.
go back to reference Sinka ME, Rubio-Palis Y, Manguin S, Patil AP, Temperley WH, Gething PW, et al. The dominant Anopheles vectors of human malaria in the Americas: occurrence data, distribution maps and bionomic précis. Parasit Vectors. 2010;3:72.CrossRefPubMedPubMedCentral Sinka ME, Rubio-Palis Y, Manguin S, Patil AP, Temperley WH, Gething PW, et al. The dominant Anopheles vectors of human malaria in the Americas: occurrence data, distribution maps and bionomic précis. Parasit Vectors. 2010;3:72.CrossRefPubMedPubMedCentral
13.
go back to reference Savage HM, Rejmankova E, Arredondo-Jimenez JI, Roberts DR, Rodriguez MH. Limnological and botanical characterization of larval habitats for two primary malarial vectors, Anopheles albimanus and Anopheles pseudopunctipennis, in coastal areas of Chiapas State, Mexico. J Am Mosq Control Assoc. 1990;6:612–20.PubMed Savage HM, Rejmankova E, Arredondo-Jimenez JI, Roberts DR, Rodriguez MH. Limnological and botanical characterization of larval habitats for two primary malarial vectors, Anopheles albimanus and Anopheles pseudopunctipennis, in coastal areas of Chiapas State, Mexico. J Am Mosq Control Assoc. 1990;6:612–20.PubMed
16.
go back to reference Gething PW, Patil AP, Smith DL, Guerra CA, Elyazar IR, Johnston GL, et al. A new world malaria map: Plasmodium falciparum endemicity in 2010. Malar J. 2011;10:378.CrossRefPubMedPubMedCentral Gething PW, Patil AP, Smith DL, Guerra CA, Elyazar IR, Johnston GL, et al. A new world malaria map: Plasmodium falciparum endemicity in 2010. Malar J. 2011;10:378.CrossRefPubMedPubMedCentral
17.
go back to reference Sturrock HJ, Hsiang MS, Cohen JM, Smith DL, Greenhouse B, Bousema T, et al. Targeting asymptomatic malaria infections: active surveillance in control and elimination. PLoS Med. 2013;10:e1001467.CrossRefPubMedPubMedCentral Sturrock HJ, Hsiang MS, Cohen JM, Smith DL, Greenhouse B, Bousema T, et al. Targeting asymptomatic malaria infections: active surveillance in control and elimination. PLoS Med. 2013;10:e1001467.CrossRefPubMedPubMedCentral
18.
go back to reference WHO Global Malaria Programme. Disease surveillance for malaria elimination an operational manual. Geneva: World Health Organization; 2012. WHO Global Malaria Programme. Disease surveillance for malaria elimination an operational manual. Geneva: World Health Organization; 2012.
19.
go back to reference Bousema JT, Schneider P, Gouagna LC, Drakeley CJ, Tostmann A, Houben R, et al. Moderate effect of artemisinin-based combination therapy on transmission of Plasmodium falciparum. J Infect Dis. 2006;193:1151–9.CrossRefPubMed Bousema JT, Schneider P, Gouagna LC, Drakeley CJ, Tostmann A, Houben R, et al. Moderate effect of artemisinin-based combination therapy on transmission of Plasmodium falciparum. J Infect Dis. 2006;193:1151–9.CrossRefPubMed
22.
go back to reference Herrera S, Quiñones ML, Quintero JP, Corredor V, Fuller DO, Mateus JC, et al. Prospects for malaria elimination in non-Amazonian regions of Latin America. Acta Trop. 2012;121:315–23.CrossRefPubMed Herrera S, Quiñones ML, Quintero JP, Corredor V, Fuller DO, Mateus JC, et al. Prospects for malaria elimination in non-Amazonian regions of Latin America. Acta Trop. 2012;121:315–23.CrossRefPubMed
29.
go back to reference WHO: World Malaria Report 2008. Geneva: World Health Organization; 2008. WHO: World Malaria Report 2008. Geneva: World Health Organization; 2008.
31.
go back to reference Cotter C, Sturrock HJ, Hsiang MS, Liu J, Phillips AA, Hwang J, et al. The changing epidemiology of malaria elimination: new strategies for new challenges. Lancet. 2013;382:900–11.CrossRefPubMed Cotter C, Sturrock HJ, Hsiang MS, Liu J, Phillips AA, Hwang J, et al. The changing epidemiology of malaria elimination: new strategies for new challenges. Lancet. 2013;382:900–11.CrossRefPubMed
33.
35.
go back to reference Cifuentes SG, Trostle J, Trueba G, Milbrath M, Baldeón ME, Coloma J, et al. Transition in the cause of fever from malaria to dengue, northwestern Ecuador, 1990–2011. Emerg Infect Dis. 2013;19:1642.CrossRefPubMedPubMedCentral Cifuentes SG, Trostle J, Trueba G, Milbrath M, Baldeón ME, Coloma J, et al. Transition in the cause of fever from malaria to dengue, northwestern Ecuador, 1990–2011. Emerg Infect Dis. 2013;19:1642.CrossRefPubMedPubMedCentral
37.
go back to reference Hiwat H, Hardjopawiro LS, Takken W, Villegas L. Novel strategies lead to pre-elimination of malaria in previously high-risk areas in Suriname, South America. Malar J. 2012;11:10.CrossRefPubMedPubMedCentral Hiwat H, Hardjopawiro LS, Takken W, Villegas L. Novel strategies lead to pre-elimination of malaria in previously high-risk areas in Suriname, South America. Malar J. 2012;11:10.CrossRefPubMedPubMedCentral
38.
go back to reference Yangzom T, Gueye CS, Namgay R, Galappaththy GN, Thimasarn K, Gosling R, et al. Malaria control in Bhutan: case study of a country embarking on elimination. Malar J. 2012;11:9.CrossRefPubMedPubMedCentral Yangzom T, Gueye CS, Namgay R, Galappaththy GN, Thimasarn K, Gosling R, et al. Malaria control in Bhutan: case study of a country embarking on elimination. Malar J. 2012;11:9.CrossRefPubMedPubMedCentral
40.
go back to reference Arevalo-Herrera M, Quiñones ML, Guerra C, Céspedes N, Giron S, Ahumada M, et al. Malaria in selected non-Amazonian countries of Latin America. Acta Trop. 2012;121:303–14.CrossRefPubMed Arevalo-Herrera M, Quiñones ML, Guerra C, Céspedes N, Giron S, Ahumada M, et al. Malaria in selected non-Amazonian countries of Latin America. Acta Trop. 2012;121:303–14.CrossRefPubMed
42.
go back to reference Guthmann JP, Llanos-Cuentas A, Palacios A, Hall AJ. Environmental factors as determinants of malaria risk. A descriptive study on the northern coast of Peru. Trop Med Int Health. 2002;7:518–25.CrossRefPubMed Guthmann JP, Llanos-Cuentas A, Palacios A, Hall AJ. Environmental factors as determinants of malaria risk. A descriptive study on the northern coast of Peru. Trop Med Int Health. 2002;7:518–25.CrossRefPubMed
44.
go back to reference Gagnon AS, Smoyer-Tomic KE, Bush AB. The El Niño southern oscillation and malaria epidemics in South America. Int J Biometeorol. 2002;46:81–9.CrossRefPubMed Gagnon AS, Smoyer-Tomic KE, Bush AB. The El Niño southern oscillation and malaria epidemics in South America. Int J Biometeorol. 2002;46:81–9.CrossRefPubMed
45.
go back to reference Githeko AK, Lindsay SW, Confalonieri UE, Patz JA. Climate change and vector-borne diseases: a regional analysis. Bull World Health Org. 2000;78:1136–47.PubMedPubMedCentral Githeko AK, Lindsay SW, Confalonieri UE, Patz JA. Climate change and vector-borne diseases: a regional analysis. Bull World Health Org. 2000;78:1136–47.PubMedPubMedCentral
46.
go back to reference Rossel F, Le Goulven P, Cadier E. Aerial distribution of the influence of ENSO on the annual rainfall in Ecuador. J Water Sci. 1999;12:183–200. Rossel F, Le Goulven P, Cadier E. Aerial distribution of the influence of ENSO on the annual rainfall in Ecuador. J Water Sci. 1999;12:183–200.
47.
48.
go back to reference Cai W, Borlace S, Lengaigne M, Van Rensch P, Collins M, Vecchi G, et al. Increasing frequency of extreme El Niño events due to greenhouse warming. Nat Clim Change. 2014;4:111–4.CrossRef Cai W, Borlace S, Lengaigne M, Van Rensch P, Collins M, Vecchi G, et al. Increasing frequency of extreme El Niño events due to greenhouse warming. Nat Clim Change. 2014;4:111–4.CrossRef
49.
go back to reference Collins M, An S-I, Cai W, Ganachaud A, Guilyardi E, Jin F-F, et al. The impact of global warming on the tropical Pacific Ocean and El Niño. Nat Geosci. 2010;3:391–7.CrossRef Collins M, An S-I, Cai W, Ganachaud A, Guilyardi E, Jin F-F, et al. The impact of global warming on the tropical Pacific Ocean and El Niño. Nat Geosci. 2010;3:391–7.CrossRef
50.
go back to reference Cohen JM, Smith DL, Cotter C, Ward A, Yamey G, Sabot OJ, et al. Malaria resurgence: a systematic review and assessment of its causes. Malar J. 2012;11:122.CrossRefPubMedPubMedCentral Cohen JM, Smith DL, Cotter C, Ward A, Yamey G, Sabot OJ, et al. Malaria resurgence: a systematic review and assessment of its causes. Malar J. 2012;11:122.CrossRefPubMedPubMedCentral
51.
go back to reference Pan American Health Organization (PAHO) and World Health Organization (WHO). Status of malaria programs in the Americas: XXXI report. PAHO/WHO; 1983. Pan American Health Organization (PAHO) and World Health Organization (WHO). Status of malaria programs in the Americas: XXXI report. PAHO/WHO; 1983.
52.
go back to reference Pan American Health Organization (PAHO) and World Health Organization (WHO). Status of malaria programs in the Americas: XXXIII report. PAHO/WHO; 1985. Pan American Health Organization (PAHO) and World Health Organization (WHO). Status of malaria programs in the Americas: XXXIII report. PAHO/WHO; 1985.
53.
go back to reference Roberts DR, Laughlin LL, Hsheih P, Legters LJ. DDT, global strategies, and a malaria control crisis in South America. Emerg Infect Dis. 1997;3:295–302.CrossRefPubMedPubMedCentral Roberts DR, Laughlin LL, Hsheih P, Legters LJ. DDT, global strategies, and a malaria control crisis in South America. Emerg Infect Dis. 1997;3:295–302.CrossRefPubMedPubMedCentral
55.
go back to reference Naranjo DP, Qualls WA, Jurado H, Perez JC, Xue R-D, Gomez E, et al. Vector control programs in Saint Johns County, Florida and Guayas, Ecuador: successes and barriers to integrated vector management. BMC Public Health. 2014;14:674.CrossRefPubMedPubMedCentral Naranjo DP, Qualls WA, Jurado H, Perez JC, Xue R-D, Gomez E, et al. Vector control programs in Saint Johns County, Florida and Guayas, Ecuador: successes and barriers to integrated vector management. BMC Public Health. 2014;14:674.CrossRefPubMedPubMedCentral
Metadata
Title
Successful malaria elimination in the Ecuador–Peru border region: epidemiology and lessons learned
Authors
Lyndsay K. Krisher
Jesse Krisher
Mariano Ambuludi
Ana Arichabala
Efrain Beltrán-Ayala
Patricia Navarrete
Tania Ordoñez
Mark E. Polhemus
Fernando Quintana
Rosemary Rochford
Mercy Silva
Juan Bazo
Anna M. Stewart-Ibarra
Publication date
01-12-2016
Publisher
BioMed Central
Published in
Malaria Journal / Issue 1/2016
Electronic ISSN: 1475-2875
DOI
https://doi.org/10.1186/s12936-016-1630-x

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