Volume 80, Issue 1
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


Giardial diarrhea in a birth cohort of 452 children in an urban slum in South India was characterized. Of the 155 episodes that occurred in 99 children, 73% were acute diarrhea. Children with better educated mothers and a toilet at home had lower odds of acquiring giardial diarrhea, whereas low socioeconomic status and drinking municipal water were associated with greater risk. Children with co-infections tended to have a slightly longer duration of diarrhea ( = 0.061) and showed significantly more wasting after an episode than children with diarrhea resulting from alone ( = 0.032). Among the 99 cases, 50 diarrheal and 51 asymptomatic positive samples were genotyped by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) at the triose phosphate isomerase gene. Assemblage B was predominant both in giardial diarrhea (80%) and asymptomatic giardiasis (94%). Children with Assemblage A subgroup-II alone or dual infections with both assemblage A and B had diarrhea more frequently ( = 0.07).


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  • Received : 02 Jan 2008
  • Accepted : 29 Sep 2008

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