Storage reservoirs - a first barrier for pathogenic micro-organisms in the Netherlands

abastecimiento de agua agua potable agua superficial almacenamiento de agua approvisionnement en eau cigotos control de enfermedades cours d'eau cryptosporidium cursos de agua cysts disease control disease prevention drinking water eau potable eau superficielle embalses enfermedades transmitidas por agua giardia kyste maladie transmissible par l'eau microorganisme microorganismos microorganisms oocysts quistes rivers stockage d'eau surface water water reservoirs water storage water supply zygote zygotes