Since mankind thoroughly eradicated polio, there hasn't been a
single human-infecting disease that's been fully removed from the
global population. Tara explains how this can be, when we've otherwise
advanced so much with our medical treatments.
Thanks to new research, the appendix can finally show itself
in public again. Tara explains why this formerly pointless organ may not
be required equipment but still serves a useful function.
Scientists warn that a potentially deadly disease may spread
from the tropics to temperate areas of Europe as the result of climate
change.
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