House construction, triatomine distribution, and household distribution of seroreactivity to Trypanosoma cruzi in a rural community in northeast Brazil

Am J Trop Med Hyg. 1978 Nov;27(6):1116-22. doi: 10.4269/ajtmh.1978.27.1116.


Household distribution of seroreactivity to Trypanosoma cruzi in inhabitants was analyzed in relation to house construction and the distribution of Panstrongylus megistus, the principal domestic vector of Chagas' disease in a rural area in northeast Brazil. No children residing in mud-brick houses were seroreactive to T. cruzi. 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 P. megistus infestations were found in mud-stick houses. Mud-brick houses had the lowest infestation rates of P. megistus and the lowest household rates of seroreactivity to T. cruzi.

MeSH terms

  • Adult
  • Animals
  • Antibodies / analysis*
  • Brazil
  • Chagas Disease / epidemiology
  • Chagas Disease / transmission*
  • Child
  • Disease Vectors
  • Housing*
  • Humans
  • Panstrongylus
  • Rural Population
  • Trypanosoma cruzi / immunology*


  • Antibodies