Of course the developing nations have not had the same access to technology as the developed ones. Combination of advances This remarkable change in life comes from a combination of advances. There's chlorine, which in the early part of this century was added to our drinking water. The result was the virtual elimination of cholera and typhoid and dramatic reductions in amoebic dysentery, all of which previously had been spread by drinking water. Immunization has eliminated such scourges as polio.
Antibiotics treat life-threatening bacteria.
It is responsible for saving millions of lives by eliminating the mosquito that carries malaria, DeGregori says. So we put the interests of birds over humans.