Transmission of mixed malaria species and strains by mosquitoes, as detected by PCR, in a study area in Guinea-Bissau

A. P. Arez, Katinka Palsson, J. Pinto, Ana Sofia Franco, João Dinis, T. G. Jaenson, Georges Snounou, Virgilio Estólio do Rosário

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Abstract

Parasites present in blood samples of asymptomatic carriers and in the midgut of mosquitoes collected within a few days from the same households, have been analysed by PCR A high prevalence (32%) of infected mosquitoes was observed and, in half of these, two parasite species were found simultaneously. The distribution of parasite species in the mosquito correlated with that found in the infected persons. Genotype patterns of Plasmodium falciparum populations were however found to be different in the two sets of samples. These results and the potential of PCR are discussed with reference to investigations of the dynamics of malaria transmission.

Original languageEnglish
Pages (from-to)65-70
Number of pages6
JournalParassitologia
VolumeVol. 39
Issue numbern.º 1
Publication statusPublished - Mar 1997

Keywords

  • Anopheles
  • Mixed infection
  • Plasmodium
  • Polymerase chain reaction
  • Transmission

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