Declining Burden of Malaria Over two Decades in a Rural Community of Muheza District, North-Eastern Tanzania
| Autor: | Bruno P. Mmbando, Michael Alifrangis, Method D. Segeja, Deus S. Ishengoma, Martha M. Lemnge, Ib C. Bygbjerg |
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| Rok vydání: | 2013 |
| Předmět: |
Male
Rural Population medicine.medical_specialty Pediatrics Mosquito Control Adolescent Cross-sectional study Parasitemia Tanzania Antimalarials Young Adult Environmental health parasitic diseases medicine Gametocyte Prevalence Humans Malaria Falciparum Child Microscopy Surveillance monitoring evaluation biology business.industry Incidence (epidemiology) Incidence Research Infant Newborn Infant Plasmodium falciparum biology.organism_classification medicine.disease Mosquito control Cross-Sectional Studies Infectious Diseases Child Preschool Tropical medicine Female Parasitology business Malaria |
| Zdroj: | Malaria Journal |
| Popis: | Background The recently reported declining burden of malaria in some African countries has been attributed to scaling-up of different interventions although in some areas, these changes started before implementation of major interventions. This study assessed the long-term trends of malaria burden for 20 years (1992–2012) in Magoda and for 15 years in Mpapayu village of Muheza district, north-eastern Tanzania, in relation to different interventions as well as changing national malaria control policies. Methods Repeated cross-sectional surveys recruited individuals aged 0 – 19 years from the two villages whereby blood smears were collected for detection of malaria parasites by microscopy. Prevalence of Plasmodium falciparum infections and other indices of malaria burden (prevalence of anaemia, splenomegaly and gametocytes) were compared across the years and between the study villages. Major interventions deployed including a mobile clinic, bed nets and other research activities, and changes in national malaria control policies were also marked. Results In Magoda, the prevalence of P. falciparum infections initially decreased between 1992 and 1996 (from 83.5 to 62.0%), stabilized between 1996 and 1997, and further declined to 34.4% in 2004. A temporary increase between 2004 and 2008 was followed by a progressive decline to 7.2% in 2012, which is more than 10-fold decrease since 1992. In Mpapayu (from 1998), the highest prevalence was 81.5% in 1999 and it decreased to 25% in 2004. After a slight increase in 2008, a steady decline followed, reaching 40% to |
| Databáze: | OpenAIRE |
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