Bacteria Project  : Introduction. htm


Disease or Not: Introduction, Two Theories, Experiments on Germ theory, Experiments to Application
Identification: Compare Microbes, Different from animals, Classification (based on properties)
Taxonomical Position: How the bacteria placed in our life forms? 
Infection: Infection Route,Temperature, Air, Food, Insects, Contact-Poor-Hygiene.
Defense: First-Line, Specific:(Phagocytic-cellular-humoral) immunity
Physical & Chemical Controls Sterilization & Pasteurization
Chemotherapy: Sulphonamides,Antibiotics: Action-Site, Aminoglycoside-Macrolides, peptide_bond
Resistance: To antibioitc, Plasmid Mediated transfer

What is  Bacteria?: A Bacterium is a Microscopic Organism, plural is Bacteria. We need a microscope to see a bacterium. It had been a challenge to prove that  bacteria can cause diseases.

History of Microbes and diseases
  • The Italian scientist Fracastorius (1485-1553), understood the concept of disease and postulated that the disease is transmitted by individual particles or seeds from one person to another.
  • Anton van Leeuwenhoek (1685), with his microscope, that was little over 2 inches, described the existence of microbes. In his letter to the Royal Society of London, September 17, 1683, described may little life forms those can't be seen with out a microscope.  

Although people understood about the existence of microbes, but could not be related to the diseases, till 1857.

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Further Reading on the Microbes Time Line Please read:

http://www.mansfield.ohio-state.edu/~sabedon/biol2007.htm
http://www.cdc.gov/drugresistance/community/faqs.htm