Determination and enumeration of Cryptosporidium oocysts and Giardia cysts in Legedadi (Addis Ababa) municipal drinking water system)

Abstract

Abstract
This study was aimed to determine the parasitological status of drinking water system in terms of Cryptosporidium
oocysts and Giardia cysts at Legedadi site around Addis Ababa city. A total of 22 samples were tested using immunofluorescence
technique from February to April, 2005 in which Cryptosporidium was detected in all samples at a
concentration range of 1-7 and 33-53 oocysts/L in the treated and untreated water samples, respectively. Whereas,
Giardia was found in 73% of the samples, with range 0-3 and 13-20 cysts/L concentration in the treated and untreated,
respectively. The preliminary study has identified the need for timely follow-up of the water system in terms of
cryptosporidiosis and giardiasis. [Ethiop.J.Health Dev. 2008;22(1):68-70]