PREVALENCE OF TRYPANOSOMA-CRUZI-LIKE INFECTION OF COLOMBIAN BATS
PREVALENCE OF TRYPANOSOMA-CRUZI-LIKE INFECTION OF COLOMBIAN BATS
复制标题
DOI:
10.1080/00034983.1982.11687517
复制
发表时间:
1982-01-01
影响因子:
--
通讯作者:
MARINKELLE, CJ
中科院分区:
文献类型:
--
作者:
MARINKELLE, CJ
Schizotrypanum spp. were found in 4.68% of 19,885 bats of 118 spp. collected from 658 localities in Colombia. Among 573 blood cultures used in mouse protection tests, partially in combination with xenodiagnosis, 233 isolates were identified as T. c. cruzi, 25 as T. c. marinkellei and 315 as Schizotrypanum sp. indet. Among the common species of bats, the highest infection with Schizotrypanum spp. was found in Noctilio labialis (50.0%), Artibeus lituratus (48.8%) and Phyllostomus hastatus (39.3%). Five T. c. cruzi isolates from bats became highly virulent to mice after 10-15 passages through mice or after passages through tissue cultures. Intra- or peri-domiciliary bats were infrequently infected (e.g., Molossus spp., 1.2%; Myotis spp., 1.3%; Carollia perspicillata 1.8%), as were bats that form large colonies in caves (e.g., 0.04% of 7532 bats of the genera Mormoops, Natalus and Pteronotus). Bats were not infected in the areas along the Atlantic coast or > 2200 m altitude. The highest prevalence was found in the virgin tropical rainforest of southern Colombia, where 90.9% of P. hastatus and 49.8% of A. lituratus harbored Schizotrypanum. No correlation was found between feeding preferences of bats and their infection rates with trypanosomes, nor between the occurrence of infected intradomiciliary Rhodnius prolixus and infection rates of bats roosting in human dwellings. In spite of frequent contamination under field conditions, cultivation followed by mouse protection tests is considered the best method for the dection of T. c. cruzi in bats, when more sophisticated biochemical study facilities are not readily available. The frequency of infection in bats indicates that they should not be neglected as a possible reservoir for T. c. cruzi.