xenodiagnosis /xeno·di·ag·no·sis/ (-di″ag-no´sis) a method of animal inoculation using laboratory-bred bugs and animals in the diagnosis of certain parasitic infections when the infecting organism cannot be demonstrated in blood films; used in Chagas' disease (examination of the feces of clean bugs fed on the patient's blood) and trichinosis (examination of rats to which the patient's muscle tissue has been fed).xenodiagnos´tic
xenodiagnosis
xenodiagnosis [zen″o-di″ag-no´sis]
xen·o·di·ag·no·sis (z n  -d g-n  s s, z n-)n. pl. xen·o·di·ag·no·ses (-s z) Diagnosis of an infectious disease at an early stage by exposing a presumably infected individual or tissue to a clean, laboratory-bred mosquito, tick, or other vector and, following a suitable incubation period, examining the vector for the presence of the infective microorganism. |
xenodiagnosis
[-dī·agnō′sis]
a method of diagnosing a vector-transmitted infection such as Chagas' disease, in which a laboratory-reared, pathogen-free insect is allowed to suck blood from a patient. The intestinal contents of the insect are then examined for the presence of the pathogen.
xenodiagnosis [zen″o-di″ag-no´sis]
1. diagnosis by means of finding, in the feces of clean laboratory-bred bugs fed on the patient, the infective forms of the organism causing the disease; used in the early stages of Chagas' disease.
2. diagnosis of trichinosis by means of feeding laboratory-bred rats or mice on meat suspected of being infected with Trichinella, and then examining the animals for the parasite. adj., adj xenodiagnos´tic.
xenodiagnosis
1. diagnosis by means of finding, in the feces of clean laboratory-reared, parasite-free arthropod vectors allowed to feed on the host suspected of being infected by a protozoan, the infective forms of the organism causing the disease; used in diagnosis of trypanosomiasis.
2. diagnosis of trichinosis by means of feeding laboratory-bred rats or mice on meat suspected of being infected with Trichinella, and then examining the animals for the parasite.
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