Abstract

CERMENO, Julman; ARENAS, Jewel; YORI, Neyla  and  HERNANDEZ, Isabel. CRYPTOSPORIDIUM PARVUM AND GIARDIA LAMBLIA IN RAW AND TREATED WATERS OF THE BOLIVAR STATE . uct [online]. 2008, vol.12, n.46, pp.39-42. ISSN 1316-4821.

The presence of Cryptosporidium Parvum and Giardia Lamblia was found in human drinking water before and after physical-chemical treatment in deep wells of the Bolívar State using the immunofluorescence method with monoclonal antibodies (MeriFluor C/G ® (Meridian Diagnostic, Inc) for Cryptosporidium Parvum and Giardia, and the trichromic stain method for Microsporidium spp. The presence of Cryptosporidium Parvum (28.57%) and Giardia Lamblia (23.81%) was detected before the treatment of the water, and 14.2% of both protozoa after the treatment. No evidence of Microsporidium spp was found. Only one of the water wells revealed C. Parvum (4.76%). It is concluded that the Cryptosporidium Parvum and Giardia Lamblia are resistant to the physical-chemical treatment of the waters which constitutes a risk factor for the people using these sources.

Keywords : Raw waters; Drinking water; Cryptosporidium Parvum; Giardia Lamblia; Microsporidium.