title: Dengue vector control and surveillance during a major outbreak in a coastal Red Sea area in Sudan.
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
authors.affiliation: Department of Medical Entomology, National Health Laboratory, Ministry of Health, Khartoum, Sudan. osamamekki@gmail.com
authors.forename: O M E
authors.initials: OM
authors.lastname: Seidahmed
authors.forename: H A M
authors.initials: HA
authors.lastname: Siam
authors.forename: M A
authors.initials: MA
authors.lastname: Soghaier
authors.forename: M
authors.initials: M
authors.lastname: Abubakr
authors.forename: H A
authors.initials: HA
authors.lastname: Osman
authors.forename: L S
authors.initials: LS
authors.lastname: Abd Elrhman
authors.forename: B
authors.initials: B
authors.lastname: Elmagbol
authors.forename: R
authors.initials: R
authors.lastname: Velayudhan
mesh_terms: D000330:Aedes / Q000821:virology*; D000818:Animals; D003715:Dengue / Q000453:epidemiology* / Q000517:prevention & control*; D058872:Epidemics; D006801:Humans; D015994:Incidence; D019156:Indian Ocean; D007303:Insect Vectors / Q000821:virology*; D007306:Insecticides / Q000008:administration & dosage*; D007814:Larva; D009032:Mosquito Control / Q000379:methods* / Q000706:statistics & numerical data; D011159:Population Surveillance; D011679:Pupa; D013397:Sudan / Q000453:epidemiology; D014867:Water
chemical_list: D007306:Insecticides; D014867:Water