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By: Nicki Shanfeld and Emily Brackman

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1 By: Nicki Shanfeld and Emily Brackman
Germ Theory By: Nicki Shanfeld and Emily Brackman

2 Overview What is germ theory and micro biology?
Who were some important people who contributed to our current understanding of germs, bacteria, and infections; when?

3 The Germ Theory and Microbiology
The Germ Theory states: microscopic organisms cause certain diseases  Microbiology: the study of microorganisms like bacteria and viruses. Emily Brackman

4 Timeline Ignaz Semmelweis (1818-1895)
- In 1847, he introduced the hand disinfection standards  Louis Pasteur ( ) - In 1849, he discovered pasteurization, which is a process that destroys microbes in food and drinks Robert Koch ( ) - In the 19th century, he became the founder of modern bacteriology, which is the study of bacteria Louis Pasteur Emily Brackman

5 Timeline Joseph Lister (1827-1912)
- In the 19th century, he thought of the idea to perform surgery with sterile tools Alexzander Fleming ( ) - In 1923, he discovered enzyme lysosome and in 1928 he discovered penicillin Ignaz Semmelweis Louis Pasteur Robert Koch Joseph Lister Alexzander  Fleming Emily Brackman

6 The Germ Theory: microscopic organisms cause certain diseases
Ignaz Semmelweis Introduced hand washing to doctors which proved to be a great success  Hand washing reduced the occurrence of fatal puerperal fever by 10% Later proved the germ theory The Germ Theory: microscopic organisms cause certain diseases  Emily Brackman

7 Robert Koch Discovered:
 Koch's postulates ( bacteria is present in sick animals, not in healthy ones. Can only be transferred to healthy animals) Asiatic cholera ( also known as the Asiatic Cholera Pandemic) Anthrax bacterium ( Anthrax is an infection caused by bacteria in the body) Mycobacterium (type of germ) mycobacterium tuberculosis( germ that causes tuberculosis, a lung infection) Won: Nobel Prize in Medicine, Nobel Prize in Chemistry Nicki Shanfeld

8 Alexander Fleming Discovered: Penicillin (one of the first medications to work on many bacterial infections) Won: Nobel Prize in Physiology or Medicine, John Scott legacy medal and premium, Albert Medal Nicki Shanfeld

9 Joseph Lister Discovered: surgery should be sterile to avoid infection
Won: Copley Medal, Royal Medal, Albert Medal Nicki Shanfeld

10 Louis Pasteur Discovered: Pasteurization (killing microbes in food)
Won: Rumford Medal, Copley medal, Leeuwenhoek Medal, Albert Medal, Montyon Prizes Created vaccination for anthrax Nicki Shanfeld

11 What is the Germ Theory? a. the study of microorganisms b. destroys microbes in food and drinks c. Bacteria spreads without hand washing d. microscopic organisms cause certain diseases The answer is D Emily Brackman

12 What is Microbiology?  a. The study of small biology b. The study of microorganisms c. The study of diseases spreading d. The study of destroying microorganisms The answer is B Emily Brackman

13 What was Louis Pasture most famous for?
a. promoting sterile surgery b. discovering penicillin c. pasteurization d. discovering the anthrax bacterium Nicki Shanfeld

14 What did Joseph Lister promote?
a. anthrax b. sterile surgery c. tuberculosis d. pasteurization Nicki Shanfeld Nicki Shanfeld

15 Overview What is germ theory and micro biology?
Who were some important people who contributed to our current understanding of germs, bacteria, and infections; when?


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