[Typhoid and paratyphoid fever in Yunnan province: distributional patterns and the related meteorological factors].
Zhonghua Liu Xing Bing Xue Za Zhi
; 32(5): 485-9, 2011 May.
Article
en Zh
| MEDLINE
| ID: mdl-21569733
ABSTRACT
OBJECTIVE:
To characterize the spatial distribution of typhoid and paratyphoid fever (TPF) in Yunnan province, China and to determine the effectiveness of meteorological factors on the epidemics of TPF.METHODS:
Data of reported TPF cases in Yunnan province (2001 - 2007) from the China Information System for Diseases Control and Prevention was applied to GIS-based spatial analyses to detect their spatial distribution and clustering of TPF incidence at the county level. Panel data analysis was used to identify the relationships between the TPF incidence and meteorological factors including monthly average temperature, monthly cumulative precipitation and monthly average relative humidity.RESULTS:
During the study period, the average incidence of TPF in Yunnan province was 23.11/100 000, with majority of the TPF cases emerged in summer and autumn. Although widely distributed, two TPF clusters were detected in Yunnan province based on the spatialanalysis:
one area around Yuxi city with the average annual incidence as 207.45/100 000 and another at the junctions of Yunnan province with Burma and Laos. Based on results from panel data analysis, the incidence of TFP was shown to be associated with meteorological factors such as temperature, precipitation, relative humidity and one month lag of temperature increase [10°C increase in the monthly average temperature IRR = 1.30 (95%CI 1.24 - 1.36); 10% increase in monthly average relative humidity IRR = 1.07 (95%CI 1.05 - 1.09); 100 mm rise in monthly cumulative precipitation IRR = 1.02 (95%CI 1.00 - 1.03); and 10°C average temperature increase, the last month IRR = 1.73 (95%CI 1.64 - 1.82)].CONCLUSION:
Areas with high TPF incidence were detected in this study, which indicated the key areas for TPF control in Yunnan province. Meteorological factors such as temperature, precipitation and humidity played a role in the incidence of TPF.
Buscar en Google
Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
2_ODS3
Problema de salud:
2_enfermedades_transmissibles
Asunto principal:
Fiebre Tifoidea
/
Fiebre Paratifoidea
/
Conceptos Meteorológicos
Tipo de estudio:
Incidence_studies
/
Prognostic_studies
Límite:
Humans
País/Región como asunto:
Asia
Idioma:
Zh
Revista:
Zhonghua Liu Xing Bing Xue Za Zhi
Año:
2011
Tipo del documento:
Article
País de afiliación:
China