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2 September 2019

History of Microbiology and Koch postulates|ICDS Supervisor Exam Kerala PSC

  History of Microbiology and Koch postulates|ICDS Supervisor Exam Kerala PSC

microbiology-history of microbiology


History of Microbiology: 



Recent discovery of Mycobacterium Tuberculosis, DNA in the three thousand years old Egyptian mummies reminds us that microorganisms have been around us for a much longer period of time. 

Infect Bacterium ancestors were the firsts living cells to appear on the earth. 



Golden age of microbiology: 


From 1857-1940 has been named Golden age of microbiology. During this period, rapid advancement spread hold mainly by Pasture & Robert Koch lead to the establishment of microbiology as a science. 

During this era 
  • Discovery of immunity 
  • Discovery of disease causing agent Robert Koch a Germen physician discovered the cause of Anthrax (Bacillus anthracis) in 1870’s. 

Koch postulates:

 1. Same pathogen must be present in every case of the disease. 

2. Pathogen must be isolated from the diseased host & grown in a pure culture 



3. Pathogen from the pure culture must cause the disease when it is inoculated into susceptible lab. Animal 

4. The same pathogen must be isolated from the inoculated animal and it must be same as original organism



This topic is important for the ICDS Supervisor Exam.Click  HERE.

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