Progress in science is shackled by its observational and measurement technologies.
Germs were theorized as a source of human illness for over a thousand years along
with other now disproven theories. It took the development of the microscope to verify
the existence of harmful bacteria and debunk alternative theories. Identifying another
harmful microbial, the virus, awaited the development of the electron microscope.
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Publication history
Published online: October 23, 2019
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© 2019 by the American Congress of Rehabilitation Medicine
