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The pathogenic protozoa Cryptosporidium sp. and Giardia sp. showed their infectivity and negative effects on the health of thousands of people in both developed and developing countries. Protozoa have ambient resistant stages that permit survived to physical and chemical treatment of drinking water. This risk is mainly related to the consumption of water whose microbiological quality indicators typically fulfill with current standards (fecal coliforms and Escherichia coli). Likewise, the discovery of new pathogens is calling for the development of new microbiological quality indicators that allow the production of really safe goods and services such as water for human consumption. Herein the authors present a literature review showing the impact of this microbiological risk in different populations.

Yezid Solarte, Instituto de Inmunología, Universidad del Valle, Cali, Colombia

Coordinador Instituto de Inmunología, Sede Buenaventura, Colombia.

Miguel Peña, Universidad del Valle

Profesor Asociado, Director del Grupo de Investigación en Saneamiento Ambiental. Instituto CINARA, Universidad del Valle, Cali, Colombia.

Carlos Madera, Universidad del Valle

Profesor Auxiliar, Escuela EIDENAR, Facultad Ingeniería, Universidad del Valle, Cali, Colombia.
Solarte, Y., Peña, M., & Madera, C. (2006). Parasitic protozoa transmission by drinking water. Colombia Medica, 37(1), 74–82.


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