Question

Who halted a london epidemic by removing the handle on a public water pump thereby eliminating the mode of disease transmission?

Answer 1

John Snow

Step-by-step explanation:

Until a mother washed her baby's diaper in a town well in 1854 and triggered an epidemic that killed 616 people, British doctor John Snow couldn't persuade other doctors and scientists that cholera, a deadly disease, was spread when people drank contaminated water.