Acta Tropica
Volume 80, Issue 1, 2001, Pages 1-8

The impact of indoor residual spraying with malathion on malaria in refugee camps in eastern Sudan (Article)

Charlwood J.D.* , Qassim M. , Elnsur E.I. , Donnelly M. , Petrarca V. , Billingsley P.F. , Pinto J. , Smith T.
  • a Centro De Malaria E Outros Doenças Tropicais, Instituto De Higiene E Medicina Tropical, Rua da Junqueira 96, 1300 Lisboa, Portugal, Danish Bilharziasis Laboratory, Jaegersborg Alle 1-D, DK-2920 Charlottenlund, Denmark
  • b UNHCR, Khartoum, Sudan
  • c Commissioner's Office for Refugees, Showak Health Unit, P.O. Box 1929, Khartoum, Sudan
  • d Liverpool School of Tropical Medicine, Pembroke Place, Liverpool L3 5QA, United Kingdom
  • e Instituto Di Parassitologia, Universitá 'La Sapienza' Di Roma, P.le Aldo Moro 5, 00185 Rome, Italy
  • f Department of Zoology, University of Aberdeen, Tillydrone Avenue, Aberdeen AB24 2TZ, United Kingdom
  • g Centro De Malaria E Outros Doenças Tropicais, Instituto De Higiene E Medicina Tropical, Rua da Junqueira 96, 1300 Lisboa, Portugal
  • h Department of Public Health and Epidemiology, Swiss Tropical Institute, Socinstrasse 57, Basle CH-4002, Switzerland

Abstract

An exploratory trial of the efficacy of indoor spraying with malathion on morbidity and mortality in refugee camps in eastern Sudan was conducted during the rainy season of 1997. The interior walls of houses from a randomly selected group of five camps were sprayed with malathion in mid-September and morbidity and mortality rates in the camps for the months October to December compared with rates in five controls. Pyrethrum spray collection and human landing catches were performed in two collection rounds. An exophagic but endophilic population of Anopheles arabiensis was the most common mosquito collected. The mean human blood index of 242 mosquitoes from eight camps was 0.51. Only two of 1040 mosquitoes examined harboured sporozoites. Blood samples of 83 putative malaria patients were examined for parasites by PCR. Mortality rates in the 3 months following spraying were significantly lower in sprayed camps although differences in clinical malaria incidence between sprayed and non-sprayed camps were not significant. © 2001 Elsevier Science B.V. All rights reserved.

Author Keywords

Sudan Malthion Malaria Incidence Anopheles arabiensis Mortality

Index Keywords

blood sampling informal settlement sporozoite refugee human Refugees Anopheles Insect Vectors controlled study Malaria mosquito morbidity Animals Seasons Humans malathion male female Child, Preschool polymerase chain reaction Incidence Article disease control infection control Plasmodium vivax major clinical study Anopheles arabiensis Tanacetum cinerariifolium Plasmodium falciparum Mosquito Control Insecticides insect control mortality Sudan
Link
https://www.scopus.com/inward/record.uri?eid=2-s2.0-0035452126&doi=10.1016%2fS0001-706X%2801%2900152-8&partnerID=40&md5=6654397deb0ad8c395529045ab4be179
DOI: 10.1016/S0001-706X(01)00152-8
ISSN: 0001706X
Cited by: 26
Original Language: English