NURSING ANM AND GNM

Detailed explanation-1: -In 1854, a physician removed the handle from a public water pump-and it changed the world. Known as the father of epidemiology, John Snow was credited with ending a cholera outbreak in London.

Detailed explanation-2: -John Snow conducted pioneering investigations on cholera epidemics in England and particularly in London in 1854 in which he demonstrated that contaminated water was the key source of the epidemics.

Detailed explanation-3: -But it was not until 1854 that the physician John Snow (1813-1858) made a major contribution to fighting cholera when he was able to demonstrate a link between cholera and the contaminated drinking water through his pioneering studies. John Snow was born in York on 15 March 1813.

Detailed explanation-4: -Hippocrates. In his book, Of the Epidemics (3), Hippocrates introduced several concepts of epidemiology that are considered the fundamentals of modern epidemiology. His main thesis was that disease causality can be attributed to climate, seasonal variations and location.