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Textbook Of Microbiology 4th Edition PDF

Textbook Of Microbiology 4th Edition PDF Free Download

Textbook Of Microbiology 4th Edition PDF Free Download
E-BOOK DESCRIPTION

Microbiology is the science of living organisms that are only visible under the microscope. Medical microbiology deals with the causative agents of infectious diseases of man, his reaction to such infections, the ways in which they produce disease and the methods for their diagnosis. The disease is transmitted by contact, from man to man, was known since biblical times. faro and Columella (first century B.C.) postulated that diseases were caused by invisible organisms which they called ‘Animalia minuta’. Fracastorius of Verona (1546) proposed a contagions vivurn (living germs) as a possible cause of infectious disease. 14m Plenciz (1762) suggested that each disease was caused by a separate agent. Kircher (1659) reported finding minute worms in the blood of plague patients, but it is more likely that he observed only blood cells with the equipment available to him.
As microbes are invisible to the unaided eye, definitive knowledge about them had to await till microscopes were developed. The credit for observation and description of bacteria goes to Antony van Leeuwenhoek (1632-1723), a draper from Delft, Holland, whose hobby was grinding lenses. He described three major morphological forms of bacteria and communicated his findings to the Royal Society of London. The significance of these observations was not then realised. In 1678, Robert Hook developed compound microscope and confirmed Leeuwenhoek’s observations.

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