Absence of both circadian rhythm and Trypanosoma cruzi periodicity with xenodiagnosis in chronic chagasic individuals
Open Access
- 1 October 2000
- journal article
- Published by FapUNIFESP (SciELO) in Revista da Sociedade Brasileira de Medicina Tropical
- Vol. 33 (5) , 427-430
- https://doi.org/10.1590/s0037-86822000000500003
Abstract
Xenodiagnoses were performed every 3 hours using 10 Triatoma infestans 3rd instar for 24 to 72 hours, in 18 chronic chagasics with positive serology and/or xenodiagnosis. There was no statistically significant difference in the positivity of assays performed during the day (9:00 to 18:00h) compared to those performed at night (21:00 to 6:00h), (chi² = 0.1526 p = 0.696). Xenodiagnosis was performed in ten of the patients for 13 successive days but there was no periodicity detected in the positive assays.Keywords
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