Bacteria/viruses, was Polio - Virology Â- the mis n amed Science

[geo]

What's your take on those instances where non-exposed populations

you have asked me that before and we have no facts on this only stories

geo: Here in Brazil this happened. Recently "Colonized Indians" have had 1/3 of their tribe,
sometimes more, dead of simple flu.
And.... if weakened immune system of human beings may allow micro-organisms to cause severe diseases,then shell we trust that all human beings have a healthy immune system? In Tahiti, Bangladesh, Centre- Africa, in starving children?