Format

Send to

Choose Destination
Parasitol Res. 2004 Mar;92(5):375-9. Epub 2004 Jan 27.

A simple immunometric assay to assess the feeding habits of Meprai spinolai, a Trypanosoma cruzi vector.

Author information

1
Disciplinary Immunology Program, Independencia 1027, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile.

Abstract

We propose a simple assay to assess the importance of seven vertebrate species as food sources for Mepria spinolai, a wild arthropod vector of Trypanosoma cruzi (the agent of Chagas' disease). Rabbits were immunized with serum proteins from one of each of the seven species. After titration, a consensus 1/100,000 dilution of the immune sera detected vertebrate serum proteins in the intestinal contents of 48.9% of 131 insects tested. The high proportion of negative samples is consistent with previous information indicating that these insects can withstand prolonged fasting periods. Alternatively, they may have fed on a different animal species than those used to produce the antisera. In about 70% of the positive samples, only one species of serum protein was detected. All pre-immune sera were negative. In 67% of the positive vectors, rabbit immunoglobulins were detected directly by means of a specific goat antibody. Thus, rabbits may play a role in T. cruzi transmission.

PMID:
14745546
DOI:
10.1007/s00436-003-1011-6
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Springer
Loading ...
Support Center