Scared Of Sickness

There is a saying in Africa: "If you are scared of a sickness, you will catch it." I think that, in a sense, there is a lot of truth in this. Fifteen years ago, I led a team of six missionaries to the Pacific. Five of our missionaries needed medical attention -- either before the mission was over, or soon after. I was the only one (number six) who was "bullet proof". My suspicion is:  it was because I lived in those islands as a child. I had been immunised through exposure. To put the African saying another way: "If you are exposed to a sickness, you will be immune to it."