The whole edifice of Infectious diseases and their treatment lies on Louis's Pasteur's 150-year old theory. His contemporary Antoine Bechamp had entirely opposite ideas. Yet Pasteur prevailed. Though Pasteur's theory holds till now we face inadequacy of it (eg) lull and resurfacing of epidemics, antibiotic resistance, inadequacy of Vaccines etc. Have the scientific community ever done a open-minded soul-searching validating research about this old infection theory. What if, the whole theory is untenable?