scholarly journals Human mixed infections of Leishmania spp. and Leishmania-Trypanosoma cruzi in a sub Andean Bolivian area: identification by polymerase chain reaction/hybridization and isoenzyme

2003 ◽  
Vol 98 (2) ◽  
pp. 255-264 ◽  
Author(s):  
B Bastrenta ◽  
N Mita ◽  
R Buitrago ◽  
F Vargas ◽  
M Flores ◽  
...  
2009 ◽  
Vol 81 (2) ◽  
pp. 228-234 ◽  
Author(s):  
Jeff T. Williams ◽  
Edward J. Dick ◽  
John L. VandeBerg ◽  
Natalia E. Schlabritz-Loutsevitch ◽  
Rohina C. Rubicz ◽  
...  

Author(s):  
Colleen M. Leonard ◽  
Hussein Mohammed ◽  
Mekonnen Tadesse ◽  
Jessica N. McCaffery ◽  
Doug Nace ◽  
...  

Plasmodium falciparum and Plasmodium vivax are co-endemic in Ethiopia. This study investigated whether mixed infections were missed by microscopy from a 2017 therapeutic efficacy study at two health facilities in Ethiopia. All patients (N = 304) were initially classified as having single-species P. falciparum (n = 148 samples) or P. vivax infections (n = 156). Dried blood spots were tested for Plasmodium antigens by bead-based multiplex assay for pan-Plasmodium aldolase, pan-Plasmodium lactate dehydrogenase, P. vivax lactate dehydrogenase, and histidine-rich protein 2. Of 304 blood samples, 13 (4.3%) contained both P. falciparum and P. vivax antigens and were analyzed by polymerase chain reaction for species-specific DNA. Of these 13 samples, five were confirmed by polymerase chain reaction for P. falciparum/P. vivax co-infection. One sample, initially classified as P. vivax by microscopy, was found to only have Plasmodium ovale DNA. Plasmodium falciparum/P. vivax mixed infections can be missed by microscopy even in the context of a therapeutic efficacy study with multiple trained readers.


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