The Matola Malaria Project: a Temporal and Spatial Study of Malaria Transmission and Disease in a Suburban Area of Maputo, Mozambique

Thompson, Ricardo; Begtrup, Kamilla; Cuamba, Nelson; Dgedge, Martinho; Mendis, Chandana; Gamage-Mendis, Asoka C.; Enosse, Sónia; Barreto, Jorge; Sinden, Robert E.; Høgh, Birthe

doi:10.4269/ajtmh.1997.57.550

Cited by 93 publications

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“…Multiple regression modeling confirmed that proximity to this site strongly influenced malaria risk over distances as small as 100 m. The finding that malaria transmission is highly focal in low transmission areas is consistent with other local scale spatial studies of malaria transmission carried out under both epidemic and non-epidemic conditions. [21][22][23] In this study, increases in maximum and minimum daily temperatures were both associated with moderate increases in malaria incidence after a 1-month delay. The IRRs reported here for weather factors are independent of larvae/pupae factors, because the latter were also included in the model.…”

Section: Discussionmentioning

confidence: 95%

A Temporal-Spatial Analysis of Malaria Transmission in Adama, Ethiopia

Peterson¹,

Borrell²,

El‐Sadr³

et al. 2009

The American Journal of Tropical Medicine and Hygiene

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Abstract. Urban malaria is a growing problem in Africa. Small-scale spatial studies are useful in identifying foci of malaria transmission in urban communities. A population-based cohort study comprising 8,088 individuals was conducted in Adama, Ethiopia. During a single malaria season, the Kulldorff scan statistic identified one temporally stable spatial malaria cluster within 350 m of a major Anopheles breeding site. Factors associated with malaria incidence were residential proximity to vector breeding site, poor house condition (incidence rate ratio [IRR] = 2.0, 95% confidence interval [CI] = 1.4, 2.9), and a high level of vegetation (IRR = 1.8, 95% CI = 1.0, 3.3). Maximum (IRR = 1.4, 95% CI = 1.1, 1.9) and minimum daily temperatures (°C; IRR = 1.3, 95% CI = 1.2, 1.5) were positively associated with malaria incidence after a 1-month delay. Rainfall was positively associated with malaria incidence after a 10-day delay. Findings support the use of small scale mapping and targeted vector control in urban malaria control programs in Africa.

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Section: Discussionmentioning

confidence: 95%

A Temporal-Spatial Analysis of Malaria Transmission in Adama, Ethiopia

Peterson¹,

Borrell²,

El‐Sadr³

et al. 2009

The American Journal of Tropical Medicine and Hygiene

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“…Unfortunately, our survey was not designed to evaluate mosquito behavior and presence of breeding sites, but previous reports in Maputo have shown that malaria risk is associated with proximity to breeding sites and decreases steeply after only a few hundred meters. 13 Therefore, malaria control in the urban setting may require the adoption of multiple, spatially targeted prevention strategies and not rely exclusively on appropriate case management. Despite successful experiences in controlling malaria relying heavily on IRS in some areas of Mozambique, other complementary strategies, including universal distribution of ITNs or integrated vector control, might be needed to further decrease malaria transmission in the city.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Malaria among Patients Attending Public Health Facilities in Maputo City, Mozambique

Oliveira

Mutemba²,

Morgan³

et al. 2011

The American Journal of Tropical Medicine and Hygiene

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Abstract. We conducted a health facility-based survey to estimate the prevalence of malaria among febrile patients at health facilities (HFs) in Maputo City. Patients answered a questionnaire on malaria risk factors and underwent malaria testing. A malaria case was defined as a positive result for malaria by microscopy in a patient with fever or history of fever in the previous 24 hours. Among 706 patients with complete information, 111 (15.7%) cases were identified: 105 were positive for Plasmodium falciparum only, two for Plasmodium ovale only, and four for both P. falciparum and P. ovale . Fever documented at study enrollment, age ≥ 5 years, rural HF, and travel outside Maputo City were statistically significantly associated with malaria by multivariate analysis. We found a high prevalence of laboratory-confirmed malaria among febrile patients in Maputo City. Further studies are needed to relate these findings with mosquito density to better support malaria prevention and control.

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“…De todos estos factores, la distancia de las viviendas a los criaderos se constituye en uno de los principales determinantes del riesgo de malaria en las áreas urbanas (12,(14)(15)(16), como lo ilustra un estudio en un área periurbana de Maputo, Mozambique, donde el riesgo de infección fue 6,2 veces más alto para las personas que vivían a menos de 200 metros de los criaderos comparado con los individuos que vivían a 500 metros o más (14). En nuestro caso no se tuvo información de la localización exacta de los criaderos para hacer este tipo de análisis.…”

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Epidemiología de malaria urbana en Quibdó, Chocó.

Ochoa

Osório

2006

biomedica

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Introducción. La malaria urbana es un problema de salud pública en Colombia y poco se conoce acerca de sus características epidemiológicas, las cuales es necesario conocer para la implementación de medidas de control. Objetivo. Determinar las características epidemiológicas de la malaria en el área urbana del municipio de Quibdó, Chocó. Materiales y métodos. Los casos de malaria diagnosticados en la ciudad de Quibdó entre marzo y julio del 2001 fueron clasificados como autóctonos e importados a partir de historias de viaje a áreas endémicas o lugar de residencia. Los casos autóctonos fueron ubicados en el mapa con el fin de identificar las zonas de riesgo a partir del cálculo de morbilidad estandarizada por edad y sexo. Resultados. Durante el periodo de estudio se incluyeron 839 casos de malaria: 77% por Plasmodium falciparum; 19% por Plasmodium vivax y 4% fueron infecciones por ambas especies. El 24,4% de los casos por P. falciparum y 39,1% de los casos de P. vivax se clasificó como autóctono. La zona de mayor riesgo de malaria se ubicó en los barrios del suroriente de la ciudad. Conclusiones. La transmisión de malaria es focalizada y las áreas de mayor riesgo de infección están ubicadas cerca de zonas con vegetación. La información obtenida en este estudio permite concentrar esfuerzos en las zonas de mayor riesgo y optimizar la utilización de recursos.Palabras clave: malaria/epidemiología, Plasmodium falciparum, Plasmodium vivax, asentamientos urbanos, Colombia. Epidemiology of urban malaria in Quibdo, Choco.Introduction. Although urban malaria is a public health problem in Colombia, little is known about its epidemiological characteristics, needed for the implementation of rational control strategies. Objective. To determine the epidemiological characteristics of malaria in the urban area of the municipality of Quibdó, in northwest Colombia. Materials and methods. Malaria cases diagnosed in the city of Quibdó between March and July, 2001 were classified as autochthonous or imported based on travel histories to endemic areas and place of residency. Autochthonous cases were mapped and risk areas identified using sex and age standardized morbidity ratios. Results. During the study period 839 malaria cases were included: 77% due to Plasmodium falciparum; 19% due to P. vivax and 4% infections due to both species. 24.4% of P. falciparum cases and 39.1% of P. vivax cases were classified as autochthonous. Those neighborhoods located in the southeast of the town showed the highest risk for malaria. Conclusion. As in other urban areas, malaria transmission in the city of Quibdo is focal and the areas with the highest risk are located near vegetation zones. These results are useful to prioritize areas for intervention and the allocation of resources.

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The Matola Malaria Project: a Temporal and Spatial Study of Malaria Transmission and Disease in a Suburban Area of Maputo, Mozambique

Cited by 93 publications

References 0 publications

A Temporal-Spatial Analysis of Malaria Transmission in Adama, Ethiopia

A Temporal-Spatial Analysis of Malaria Transmission in Adama, Ethiopia

Prevalence of Malaria among Patients Attending Public Health Facilities in Maputo City, Mozambique

Epidemiología de malaria urbana en Quibdó, Chocó.

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