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The Hygiene Hypothesis, Part 3. Are Parasitic Worms Friend or Foe?

... . The question we're now looking at is: why? 'Why' questions in biology require evolutionary explanations; it is a matter of ... system has also evolved an elaborate control system to stop it from getting out of hand and causing excessive damage to our own ...

What can we do to stop the Ebola spread?

... is ebola, and what can we do to stop it. We asked your questions to Chris, who is a consultant virologist... Kat -   So Chris, ... about Ebola on our website that's thenakedscientists.com/articles. Dr Chris Smith, Cambridge University What can we do to stop the ...