Purpose of the mode of communication of cholera by john snow

John Snow was one of the first physicians to study and calculate dosages for the use of ether and chloroform as surgical anaesthetics, allowing patients to undergo surgical and obstetric procedures without the distress and pain they would otherwise experience.

Ok!

Explanation:

The basic elements of the communication process include communicator, communicatee, message, channel, and feedback. ... - Communication channel or the media through which the sender passes the information and understanding to the receiver.