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167112Chagas Disease

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  • John French
    Jul 10 8:38 AM
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      Here is the abstract of an article on the history of Chagas Disease. It
      is endemic in many parts of Latin America (including Costa Rica), and
      through migration has spread to other countries. There are an estimated
      300,000 infected in the U.S.


      Skip the detailed stuff in the full article, but read the actual history
      and current situation in the full article (PDF format) available at the
      web site.


      John French
      ____________________________
      Abstract (provisional)


      The ancestor of Trypanosome cruzi was probably introduced to South
      American via bats approximately 7-10 million years ago. When the first
      humans arrived in the New World, a sylvatic cycle of Chagas disease was
      then already well established. Paleoparasitological data suggests that
      human American trypanosomiasis originated in the Andean area when people
      founded the first settlements in the coastal region of the Atacama
      Desert. Identification of T. cruzi as the etiological agent and triatome
      bugs as the transmission vector of Chagas disease occurred within a few
      years at the beginning of the 20th century. History also teaches us that
      human activity leading to environmental changes, in particular
      deforestation, is the main cause for the spread of Chagas disease.
      Recently, migration of T. cruzi-infected patients has led to a
      distribution of Chagas disease from Latin America to non-endemic
      countries in Europe, North America and western Pacific region.


      http://www.parasitesandvectors.com/content/7/1/317/abstract
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