Part 1: the main theme of microbiology; from atoms to cells - a chemical connection; procaryotic profiles - the bacteria; eucaryotic cells and microorganisms; an introduction to the viruses; elements of microbial nutrition, ecology and growth; microbial metabolism - the chemical crossroads of life; microbial genetics; physical and chemical control; drugs, microbes, host - the elements of chemotherapy; microbe-human interactions - infection and disease; the nature of host defences; the acquisition of specific immunity and its applications; disorders in immunity. Part 2 An introduction to medical bacteria: the cocci of medical importance; bacilli of medical importance; miscellaneous bacterial agents of disease; fungal diseases; parasitic diseases; introduction to viral disease and DNA viruses; the RNA virus disease; environmental and applied microbiology.