Infectious Diseases What is the role of microorganisms in our world?

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Presentation transcript:

Infectious Diseases What is the role of microorganisms in our world?

History of infectious diseases Medieval times: Believed that supernatural forces created diseases to punish humanity for its sins Gerolomo Frascatoro (1530) proposed in a poem that syphilis was caused not by a "mysterious shadow or miasma, not by obstructed humors, but by a kind of seed”

History of Infectious Disease Anton van Leeuwenhoek (late 1600s) Discovery of microorganisms Robert Koch (1870s) Proposed the germ theory of disease

Infectious Disease Caused by pathogens- disease-causing agents such as: Caused by pathogens- disease-causing agents such as: Bacteria Bacteria Viruses Viruses Fungi Fungi Protists Protists Parasites Parasites

Infectious disease How are infectious diseases transmitted? How are infectious diseases transmitted? What are the symptoms of infectious diseases? What are the symptoms of infectious diseases? How can infectious diseases be treated? How can infectious diseases be treated? How can infectious diseases be prevented? How can infectious diseases be prevented? What do infectious diseases hold for the future? What do infectious diseases hold for the future?

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