Virgin-soil epidemics are those in which the populations at risk have had no previous contact with the diseases that strike them and are therefore immunologically almost defenseless.
⇑ Translate the sentence above by Google ⇑
Related: virgin
Prev: Now, we won't submit to impertinence from these pimply, tipsy virgins.
Next: It was on 24th June 1981 that young villagers first reported seeing the Virgin Mary in a vision.