South America is in both the Northern and Southern Hemisphere, with the Equator running directly through the continent. The Tropic of Capricorn also runs through South America. The Pacific Ocean ...

Thus, these three South American countries share a notably similar history of immunology that tightly mirrors the social, political and economical scenarios of the region. Admittedly, conditions ...

All the continents were joined into a single supercontinent called Pangaea, which was shaped like a C with its middle straddling the equator. South America and Africa were in the southern ...