Polio is back, because it was never eradicated. The third world has had polio ravaging them for decades now. Especially in S.America and Africa. With [their] open borders policies, it's to be expected that we would see a rise in polio cases worldwide.
After all, viruses never go away. We just become immune to them thru natural selection.
Polio is back, because it was never eradicated. The third world has had polio ravaging them for decades now. Especially in S.America and Africa. With [their] open borders policies, it's to be expected that we would see a rise in polio cases worldwide.
After all, viruses never go away. We just become immune to them thru natural selection.