1887

oa Central African Journal of Medicine - Transmission of schistosomiasis in a rural area in Zambia

Volume 27, Issue 12
  • ISSN : 0008-9176

 

Abstract

Schistosomiasis transmission was studied in an agriculturally-rich, rural area in Zambia. Prevalence of Schistosoma haematobium in a village was as high as 68% whereas in a nearby area with pipe-borne water it was 18%. Cystoscopy of a small number of infected children from the high prevalence area showed bladder changes consistent with the acute phase of urinary schistosomiasis. Intestinal schistosomiasis due to S. mansoni was prevalent while a few cases due to the animal species S. mattheei were also discovered. The type of habitats harbouring the snail intermediate host is descriptionbed. Bulinus (Physopsis) africanus was the primary intermediate host of S. haematobium through B. (P) - globosus and forms intermediate between the two were also located. Biom. pfeifferi was the sole intermediate host of S. mansoni. There was a low infection rate in the snails. Though intense transmission is limited to a seasonal period, in irrigation furrows transmission is throughout the year. Village regrouping in the absence of advance planning may play a significant role in increasing the spread and intensity of transmission. A domestic supply of water and an educational propaganda campaign should be the central points of a control programme. Focal mollusciciding may also be necessary in some areas.

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/content/CAJM/27/12/AJA00089176_1118
1981-12-01
2019-08-23

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