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Francesco Redi
He made the first serious attack on the idea of spontaneous generation. He was a an Italian physician and poet. Redi believed that maggots developed from eggs laid by flies -
Anton van Leeuwenhoek
Anton van Leeuwenhoek, a Dutch cloth merchant, was the first person to see bacteria. he started to grind glass lenses to make better magnifying lenses so he could examine the weave of cloth more easily. -
Ignaz Semmelweis
Semmelweis worked in a maternity hospital where the death rate of mothers and babies was extremely high because of an infection commonly known as child bed fever or puerperal fever. -
John Snow
He proposed a theory that a miasma or cloud of infection could explain how cholera epidemic in London could spread. He thought that the invisible force got into the water and was spread as people used water contaminated. -
Louis Pasteur
Pasteur's hypothesis was that if cells could arise from nonliving substances, then they should appear spontaneously in sterile broth. Pasteur showed that microorganisms grew in broth in a sealed tube, but nogrowth or spoiling of the broth occurred if it was boiled first -
Robert Koch
He demonstrated that the disease anthrax was caused by abacterium. His basic criteria that proved the germ theory are nowcalled Koch’s postulates and are still used today as a check list forproving that an infectious organism actually causes a specific disease -
Alexander Fleming
He discovered penicillin and other antibiotics as well as new treatments such as chemotherapy.Greater use of vaccination programs and health education lead to a huge reduction in the occurrence of, and in some cases, thecomplete eradication of, infectious diseases. -
Joseph Lister
developed antiseptics and showed that their use in operations could prevent the many infections seen in early surgery.Vaccines were developed and used which introduced specific methods for control and prevention of disease.
