What health advantage does cystic fibrosis confer on the person who has it?

Question

Quizplus · Accepted Answer

The high frequency of the heterozygous carrier state for cystic fibrosis (CF) among Caucasians from Northern and Western Europe suggests that being a CF carrier might have a potential advantage. Scientists now believe people who are heterozygous or homozygous for specific common CFTR mutations have greater resistance to typhoid and to cholera toxin when exposed to these disease-causing microorganisms.

What Health Advantage Does Cystic Fibrosis Confer on the Person