Ascariasis and Toxocariasis

  • Kenneth S. Warren
  • Adel A. F. Mahmoud


Ascaris lumbricoides, also known as the “giant intestinal round worm,” has been known since ancient times because of its foot-long size and its great prevalence. In 1947 it was estimated that there were 644 million people, or approximately one-quarter of the world’s population, with ascariasis. Since this ubiquitous parasite is difficult to control and there has been considerable population growth in the last 30 years, it can now be estimated that A. lumbricoides infects one billion people. In the United States, a recent review suggested that 2.5 million people, mainly in the southeastern section, have ascariasis.1


Biliary Obstruction Worm Burden Female Worm Of788 Case Ascaris Lumbricoides 
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Copyright information

© Springer-Verlag New York Inc. 1985

Authors and Affiliations

  • Kenneth S. Warren
    • 1
  • Adel A. F. Mahmoud
    • 2
  1. 1.Rockefeller FoundationNew YorkUSA
  2. 2.University Hospital of ClevelandClevelandUSA

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