Question

Which of the following would most quickly devastate a human population?

A flu virus breaking out in a large office building or school

A deadly water-borne microorganism in a city's water source

A genetic disorder found in a population of average women

An illness that spreads through contact with bodily fluids

Answer 1

I would say that a deadly water-borne microorganism in a city's water source would most quickly devastate a human population, merely because a huge number of people uses this water for some kind of a purpose.