| cryptosporidium spp. and giardia duodenalis as pathogenic contaminants of water in galicia, spain: the need for safe drinking water. | the objectives of this cross-sectional study were to detect the presence of cryptosporidium spp. and giardia duodenalis in drinking water treatments plants (dwtps) in galicia (nw spain) and to identify which species and genotype of these pathogenic protozoans are present in the water. samples of untreated water (surface or ground water sources) and of treated drinking water (in total, 254 samples) were collected from 127 dwtps and analysed by an immunofluorescence antibody test (ifat) and by pcr ... | 2015 | 25270421 |
| contribution of treated wastewater to the contamination of recreational river areas with cryptosporidium spp. and giardia duodenalis. | samples of the influent and final effluent from 12 wastewater treatment plants from galicia (nw, spain) were analyzed for the presence of cryptosporidium spp. oocysts and giardia duodenalis cysts. all of the plants discharge effluent to a hydrographic basin in which there are numerous recreational areas and fluvial beaches. the samples (25-50 liters) were collected in spring, summer, autumn and winter of 2007. a total of 96 samples were analyzed using techniques included in the us environmental ... | 2008 | 18538816 |