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A Worm Can Be Monkey Business
Arch Ophthalmol. 2002;120:634-635.
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HUMANS SHARE planet Earth with countless living organisms, many of which
affect human health. As every ophthalmologist will recall from undergraduate
courses in biology, the taxonomy of these living creatures classifies related
organisms into categories. In descending order, these are as follows: kingdom,
phylum, class, subclass, superorder, order, suborder, superfamily, family,
genus, and species. The roundworms are included in the phylum Nematoda, which
is the largest and most widespread group of multicellular organisms. The evolution
of numerous nematodes has resulted in complex life cycles in which the worm
is parasitic to invertebrates and vertebrates during part of its cycle. Often
the organism is spread from one host to another through the bite of an arthropod
vector or the eating of meat containing a larval stage of the worm. Sometimes
the life cycle requires specific species as vectors and intermediate hosts.
Some human infections due to nematodes are primarily zootic disorders
. . . [Full Text of this Article]
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Ling-Ing Lau, Fenq-Lih Lee, Wen-Ming Hsu, Silvio Pampiglione, Maria Letizia Fioravanti, and Thomas C. Orihel
Arch Ophthalmol. 2002;120(5):643-646.
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