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You are watching Preview - The Hidden Invaders Season 1 Episode 8

 In Brazil, millions of people are infected with intestinal worms. Although there are effective drugs to treat worm infections, they’re not universally available and can’t prevent future infections. Now a team of scientists are trying to develop a vaccine against one of the most damaging parasites, hookworm. It will be the first vaccine against a multi-cellular organism.

• On site 10 February 2009
• Air date 20 December 2008
• Produced for BBC World

TV Series — Survival

• Episode 7
• Episode 8
• Episode 8
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Keywords

• worms,
• hookworms,
• Survival,
• Brazil,
• Global Health,
• South America