Tabla de Contenidos: “…. -- Principle 4 -- Material Should be Assessed in Terms of Human Risk, Rather Than as "Safe" or "Unsafe -- Principles To Be Used for Noncarcinogens and Nonmutagens -- RESEARCH RECOMMENDATIONS -- REFERENCES -- III Microbiology of Drinking Water -- EPIDEMIOLOGY -- BACTERIA -- Number of Cells Required to Infect -- Estimation of Disease Potential by Direct Quantitation of Bacterial Pathogens -- Indicator Organisms -- Escherichia Coli and the Coliform Group -- Some Deficiencies of Coliforms as Indicator Organisms -- Other Indicator Organisms -- Rapid Methods for Coliform Counts -- Sampling for the Coliform Test -- Coliform Standards -- United States Standards -- International Standards -- Statistical Limits -- The Health Significance of the Coliform Test -- Conclusion on Coliform Standard -- The Standard Plate Count -- Conclusions on Standard Plate Count -- Recommendations for Research on Bacterial Contaminants -- VIRUSES -- History of the Enteric Viruses -- Epidemiology -- Recovery and Identification of Viruses -- Factors Influencing Recovery -- Cell-Culture Systems for Detection -- Recovery Procedures for Virus in Finished Water -- Identification of Viruses Recovered from Water -- Sensitivity of the Flowthrough Method -- Perspectives in Testing Large-Volume Samples -- Health Effects of Viruses in Drinking Water -- Virus Removal in Water Treatment -- Coagulation and Settling -- Filtration and Sorption -- Water-Softening -- Disinfection -- Chlorination -- Bromination -- Iodination -- Ozonation -- Effectiveness of Water Treatments -- Bacterial Indicators and Viruses in Drinking Water -- Conclusions -- Research Recommendations -- PATHOGENIC PROTOZOA AND HELMINTHS -- Protozoa -- Amebiasis -- Facultatively Parasitic Amebae -- Giardiasis…”

Materias: “…Escuelas Profesionales de la Sagrada Familia (SAFA)…”

Materias: “…Escuelas Profesionales de la Sagrada Familia (SAFA)…”