The extra-intestinal development of Trypanosoma rangeli Tejera,
1920, in triatomines was studied by several authors and nowadays it is well
known that this flagelate is able not only to develop in the hemolymph of
the vector but also to invade its salivary glands being transmitted by the
bite [R Zeledon 1965 Rev Biol Trop (Costa Rica) 13: 157-159, EJ
Tobie 1965 J Parasitol 51: 837-841, MS Grewal 1970 Res Bull (NS)
Panjab Univ 20: 449-480]. The infection can be transmitted both by the
contaminative and inoculative methods, although this last one seems more
efficient.
