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Title: Dengue vector control and surveillance during a major outbreak in a coastal Red Sea area in Sudan
Authors: Seidahmed, O.M.E.
Siam, H.A.M.
Soghaier, M.A.
Abubakr, M.
Osman, H.A.
Abd Elrhman, L.S.
Elmagbol, B.
Velayudhan, R.
Issue Date: 2012
Language: English
Abstract: An unprecedented dengue outbreak occurred in 2010 in Port Sudan city, Sudan. Dengue incidence was 94 cases per 10 000 observed over 17 epidemiological weeks [total cases = 3 765]. We report here the impact of the vector control response plan to the outbreak, which mainly entailed house inspection and insecticide space spraying. In total 3 048 houses were inspected during vector surveillance and 19 794 larvae and 3 240 pupae of Aedes aegypti were collected. Entomological indices decreased during the period: house index declined from 100% to 16% [F= 57.8, P< 0.001] and pupal/person [P/P] index from 0.77 to 0.10 [F= 3.06, P< 0.01] in weeks 9 and 21 respectively. This decline was accompanied by a decrease in cases from a peak of 341 cases in week 13 to zero in week 29 and the end of the outbreak. There was a significant correlation between the entomological parameters and dengue incidence [R2 = 0.83, F= 23.9,P< 0.001]. Integrated epidemiological and vector surveillance is essential to an effective dengue control programme
Description: 1217-1224
Keywords: Insect Vectors
Disease Outbreaks
Subject: Dengue
ISSN: 1020-3397
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Appears in Collections:EMRO Journal Articles (EMHJ)

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