1921
Volume 73, Issue 6
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

transmission blocking immunity (TBI) was investigated in 3 different endemic areas. Reared were experimentally infected with the blood of gametocyte carriers, either in the presence of autologous plasma (OWN) or after replacement of the OWN plasma with a nonimmune serum of AB blood group (control). Transmission reduction was defined by a lower level of mosquito infection in the OWN batch compared with the control. After controlling for the effect of gametocytemia, the proportion of “transmission reducers” was lower in the town of Yaounde in Cameroon (UC), (14%, = 75) than in the two rural areas of South Cameroon (RC) (29%, = 31) and Sénégal (RS) (44%, = 32). The contribution of TBI relative to the total inhibition of the parasite development (including human, parasite, and mosquito factors) was higher in RS (49.6%) than in RC (12.6%) and UC (9.5%).

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2005-12-01
2017-11-18
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  • Received : 02 Jul 2004
  • Accepted : 13 Jan 2005

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