BS 375 Lecture Notes - Veterinary Virology, Protozoa, Food Quality

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Types of microbes (viruses, bacteria, fungi, algae, protozoa) Definition: study of applied aspects of microorganisms on environment and human activities, health, and welfare. The impact on human activities may be: direct, ex. microbial diseases, indirect, ex. through action of animals, plants, and ecosystems. Transmission of bacterial & viral pathogens of human. In 1970, environmental microbiology emerged as a new science. Microbial ecology: interaction of microbes with the environment. Emergence of water-borne and food-born pathogens (threat to human and animal diseases) Contamination of surface and groundwater (organic and inorganic chemicals) Chemical pollutants: potential disease, economic impact - high cost of clean up. Modern environmental microbiology: agriculture and soil microbiology. Control of loss of fixed nitrogen: resource production. Collection and detection of pathogens in the air environment. Movement of microbes in the air: resource recovery. Elimination or control of pathogens: water quality. Elimination or control of pathogens: wastewater treatment. Two types of microbes: acellular: viruses, prions, viroids, cellular: two types, prokaryotes: