Some considerations on the blood ingestion preference (between human or bird source) of Triatoma sordida that were found in inhabited houses, in the north regions of the State of S. Paulo - Brazil

Authors

  • Eduardo Olavo da Rocha e Silva USP; Faculdade de Saúde Pública; Departamento de Epidemiologia
  • José Maria Pacheco de Souza USP; Faculdade de Saúde Pública; Departamento de Epidemiologia
  • José Carlos Rehder de Andrade Secretaria da Saúde do Estado de São Paulo; Superintendência de Controle de Endemias
  • Cassio da Silva Mello Secretaria da Saúde do Estado de São Paulo; Superintendência de Controle de Endemias
  • Octávio Alves Ferreira Secretaria da Saúde do Estado de São Paulo; Superintendência de Controle de Endemias

DOI:

https://doi.org/10.1590/S0034-89101977000200010

Keywords:

Trypanosomiasis, South American, Triatoma sordida, Triatomids^i2^sfeeding prefere

Abstract

Results of preciptin tests for anti-human blood and anti-bird blood were shown for 555 T. sordida, captured in inhabited houses in the State of S. Paulo Administrative Regions of Ribeirão Preto and S. José do Rio Preto. Besides getting the hematophilic index of seletivity of Hess, Hayes et Tempelis 9, a device built in order to offer simultaneously human blood (the fore arm of the researcher) and bird blood (the breast of a pigeon) was used. The analysis of the results of preciptin tests, the index of selectivity and the results of the offering of two alternatives as blood sources, showed that the T. sordida has a definite preference for bird blood save on two occasions, when the human source was far more available.

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Published

1977-06-01

Issue

Vol. 11 No. 2 (1977)

Section

Original Articles

How to Cite

Silva, E. O. da R. e, Souza, J. M. P. de, Andrade, J. C. R. de, Mello, C. da S., & Ferreira, O. A. (1977). Some considerations on the blood ingestion preference (between human or bird source) of Triatoma sordida that were found in inhabited houses, in the north regions of the State of S. Paulo - Brazil . Revista De Saúde Pública, 11(2), 258-269. https://doi.org/10.1590/S0034-89101977000200010