dc.contributor.author |
Hapangama, H.A.D.C. |
|
dc.contributor.author |
Gunawardene, Y.I.N.S. |
|
dc.contributor.author |
Hapugoda, M.D. |
|
dc.contributor.author |
Dayanath, M.Y.D. |
|
dc.contributor.author |
Abeyewickreme, W. |
|
dc.date.accessioned |
2015-08-18T09:11:05Z |
|
dc.date.available |
2015-08-18T09:11:05Z |
|
dc.date.issued |
2007 |
|
dc.identifier.citation |
Health Security in the Tropics, Proceedings of the Joint International Tropical Medicine Meeting 2007: 150 |
en_US |
dc.identifier.uri |
http://repository.kln.ac.lk/handle/123456789/9222 |
|
dc.description |
Oral Presentation of Joint International Tropical Medicine Meeting (JITMM 2007), 29-30 October 2007 Bangkok, Thailand |
en_US |
dc.description.abstract |
RATIONALE: Dengue is an important flaviviral infection in Sri Lanka.OBJECTIVES; To determine the effect of possible contributing factors on transmission of Dengue METHODS: A total of 40 households situated around 7 selected dengue cases confirmed by both IgM-IgG ELISA and HAI assay were taken. A minimum of 3 inhabitants from each household were tested for anti-dengue antibodies. At each household, mosquito surveillance was carried out. RESULTS: Of the 40 households, 26(65%) were positive for dengue viral infection. Of the 148 inhabitants, 41 had evidence of exposure to dengue. Of the 41. asymptomatic dengue infection was observed in 25(61%). Paired sera were collected from 36/41 volunteers and tested by HAI assay which confirmed dengue virus infection in 4(11.1%) and were confirmed secondary. Three (75%) of them were asymptomatic. Balance 32(88.9%) was diagnosed as recent dengue infections. Of that 21(65.6%) were asymptomatic probable secondary 7(33.3%), recent dengue 14(66.6%)]. Clustering of cases was observed in all localities varying from 56.5%. There was a significant statistical association between the presence of a definitive dengue infection with the presence of Aedes vectors (x2=3.1, p=0.1). Ae. albopictus were found in all localities 'while Ae. aegypti was found only in one. Breteau index for Ae. albopictus varied from 0-260 while- container index varied from 0-84%. Highest clustering of dengue cases were observed in localities with the highest indices for' mosquitoes. CONCLUSIONS: Study confirms that the presence of asymptomatic infections and clustering of cases. The predominant vector was Ae. albopictus. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Faculty of Tropical Medicine, Mahidol University |
en_US |
dc.subject |
Dengue |
en_US |
dc.title |
Transmission study of dengue fever in Gampaha District, Sri Lanka |
en_US |
dc.type |
Conference Abstract |
en_US |
dc.identifier.department |
Molecular Medicine Unit |
en |
dc.identifier.department |
Parasitology |
en |
dc.creator.corporateauthor |
Parasitology and Tropical Medicine Association of Thailand |
en |
dc.creator.corporateauthor |
SEAMEO Regional Tropical Medicine and Public Health Network |
|
dc.creator.corporateauthor |
TROPMED Alumni Association |
en |