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oa Alternation - Do Parasitic Worm Infections Impair Cognitive Development?

Volume 10, Issue 2
  • ISSN : 1023-1757

 

Abstract

Over the course of the last century around fifty studies were published addressing the question of whether parasitic worm infections affect cognitive performance (Watkins & Pollitt 1997). Despite this sustained interest in the topic, it is still difficult to draw unequivocal conclusions. A recent review of treatment trials argued that 'there is insufficient evidence as to whether [deworming treatment] improves cognitive performance' (Dickson, Awasthi, Williamson, Demellweek & Garner 2000). The ambiguity of the evidence does not imply, of course, that parasitic worm infections do not affect cognitive function, or that treatment of children with infections cannot improve cognitive function. The ambiguity is more likely to result from the difficulty in producing clear results in a field where conducting well designed studies is expensive, time consuming and often unethical. This paper considers the key difficulties in interpreting results in this field and descriptionbes a recent study that attempted to avoid such problems.

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/content/alt/10/2/AJA10231757_716
2003-01-01
2019-10-20

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