Related Experiment Video
Updated: Apr 2, 2026
On-site DNA Detection of Trypanosomatid Parasites and Nosema ceranae Through Alkaline Lysis Coupled to RPA/CRISPR/Cas12a System
Published on: July 18, 2025
Detection of Trypanosoma vivax using PCR and LAMP during aparasitemic periods
Fabiano Antonio Cadioli1, Otavio Luiz Fidelis Junior2, Paulo Henrique Sampaio2
1FMVA, UNESP/Araçatuba, Rua Clóvis Pestana 793, 16050-470 Araçatuba, SP, Brazil.
Abstract:
Trypanosoma vivax affects cattle herds in Africa and Americas and has been spreading rapidly in Brazil, through introduction of animals with subclinical infections and without apparent parasitemia, which makes its diagnosis challenging. PCR and LAMP are effective in detecting the presence of T. vivax DNA in situations of low parasitemia. LAMP is simpler and faster technique than PCR, and can be performed in the field, with limited resources. In this study, the capacities of conventional PCR and LAMP for detecting T. vivax in bovine blood samples classified as aparasitemic were evaluated. The capacity of conventional PCR (56.25%) for detecting positive samples was lower than that of LAMP (93.73%). This may influence the choice of screening tests for cattle herds infected with T. vivax.
