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The Relationship of Climate to Dengue Cases in Manado, North Sulawesi: 2001-2010

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Climatic condition is one of the factors that influence Dengue Hemorrhagic Fever (DHF). This study explores the correlation between climate and the number of dengue cases in the city of Manado.

Data on the number of dengue cases per month for 10 years (2001-2010) in Manado was available from the Health Department of the city of Manado, while the climate data (temperature, humidity, rainfall and rainy days) was derived from the Meteorology, Climatology and Geophysics Agency (BMKG). Linear regression was used to determine the dominant climatic factors related to the number of dengue cases.

Results in the rainy season period from January to March temperature was the dominant factor affecting the number of dengue cases. An increase in temperature of 1 o C would reduce the number of dengue cases by 18 [regression coefficient (β) = -18.47; P =0.133]. While in the dry season period from April to July humidity and rainy days were the dominant factors affecting the number of dengue cases. An increase of 1 point of moisture was found to increase the number of dengue cases by 2.4 (β= 2.44; P = 0.021). However, 1 day of rain decreased the number of dengue cases by as much as 2 (β= 2.05; P = 0.024). In the rainy season period from August to December, the dominant factors were humidity and rainy days. An increase of 1 point in the humidity was found to increase the number of cases by 13.6 (β= 13.65; P =0.100). However, an increase of 1-point in the rainy days was found to reduce the number of dengue cases by 7 (β= -7.69; P =0.035).

In the city of Manado, the dominant climatic factors for DHF varied by season. (Health Science Indones 2013;1:22-6)

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Series Title

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Call Number

Health Sciences Journal of Indonesia, 4 (1) 2013 :

Publisher

Jakarta : Sekretariat Badan Litbang Kesehatan., 2013

Collation

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Language

English

ISBN/ISSN

2087-7021

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Edition

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Subject(s)

CLIMATE
DENGUE HEMORRHAGIC FEVER
TEMPERATURE
HUMIDITY

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