Sunday, November 25, 2018

Answer to Case 520

Answer: Adult hookworm, Necator americanus
The hookworms are easily recognized by their piercing mouth parts - used for attaching to the small intestinal wall and drawing blood from the host. N. americanus has cutting plates, while Ancylostoma duodenale has sharp pointed teeth.
Thanks to all who wrote in with the great comments and ancient Chinese wisdom!

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