James Fulford writes:
This is premodern thinking. Apparently women born in County Tyrone in 1869 couldn’t comprehend the Germ Theory of Disease, and neither could a Liberian—or a lot of current immigrants from primitive countries. (…)
Disease can come in on Mexican produce, without any immigrants at all, because of the lower standards of Mexican public health.
Of course, many of America’s food handling chores are now being done by people from these same foreign countries, so it now affects the American food industry.
Third World immigrants not only don`t understand the germ theory of disease, they may refuse to believe it even if we teach it to them.