Volume 27, Issue 6
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



Household distribution of seroreactivity to in inhabitants was analyzed in relation to house construction and the distribution of , the principal domestic vector of Chagas' disease in a rural area in northeast Brazil. No children residing in mud-brick houses were seroreactive to . The highest rates of seroreactivity occurred in residents of unplastered mud-stick houses, and were twice as high as those found in persons living in mud-brick houses or plastered mud-stick houses. Two-thirds of seroreactive children in this area resided in unplastered mud-stick houses. Over 90% of the infestations were found in mud-stick houses. Mud-brick houses had the lowest infestation rates of and the lowest household rates of seroreactivity to .


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