SPATIAL ANALYSIS OF MALARIA TRANSMISSION PARAMETERS IN THE RICE CULTIVATION AREA OF OFFICE DU NIGER, MALI
| Autor: | Nafomon Sogoba, Mahamadou B. Touré, Ibrahim Sissoko, Yeya T. Touré, Penelope Vounatsou, Magaran Bagayoko, Sekou F. Traore, Thomas J. Smith, Seydou Doumbia |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
biology
Ecology business.industry Anopheles food and beverages Vegetation biology.organism_classification medicine.disease law.invention Infectious Diseases Geography Transmission (mechanics) Agronomy Abundance (ecology) Agriculture law Virology Vector (epidemiology) medicine Paddy field Parasitology business Malaria |
| Zdroj: | The American Journal of Tropical Medicine and Hygiene. 76:1009-1015 |
| ISSN: | 1476-1645 0002-9637 |
| DOI: | 10.4269/ajtmh.2007.76.1009 |
| Popis: | The effects of rice growth environment on malaria transmission, taking into account spatial correlation, were assessed in the Office du Niger, Mali. Between April 1999 to January 2001, 8 quarterly entomologic surveys were conducted in 18 villages in 3 agricultural zones. Vector densities in sleeping houses were related to rice crop, rice development stages, vegetation abundance, water state, and seasons. They were high throughout the rice-growing seasons, increased as the rice crop developed, and decreased as vegetation became abundant. They also showed large spatial correlations (up to 30.6 km). The vectorial capacity exhibited both seasonal and village-to-village variation. Parity and the human blood index were weakly related to adult densities and showed low spatial correlations (up to 3.4 km), which suggested that small area variation in malaria transmission results mainly from variations in vector-human contact. Control strategies in rice cultivation areas should pay attention to this local variation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|