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First written record of virus infections in hieroglyphics fount in Memphis, Egypt.
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Protection from smallpox using variolation practice.
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Edward Jenner vaccinated a boy with cowpox-infected material which stopped smallpox.
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Robert Koch and Louis Pasteur
Pasteur identified rabies to be caused by an agent he termed "virus" from the Latin for "Poison". -
Dmitri Iwanowski showed that ceramic filtered extracts from diseased plants could transmit diseases plants could transmit disease to other plants.
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Martinus Beijerinick work on TMV.
Freidrich Loeffler and Paul Frosch work on foot and mouth disease in cattle. -
Poliomyelitis (Yellow Fever) was the first human disease to be recognised as a viral disease.
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Bacteriophages (eaters of bacteria) Frederick Twort and Felix d'Herelle discovered viruses which infect bacteria.
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Discoveries of Ebola, West Nile, HIV, SARS, etc