Mutations in the propeller domain of the Plasmodium falciparum kelch13 (k13) gene are associated with artemisinin resistance.
We developed a PCR protocol to sequence the pfk13 gene and determined its sequence in a batch of 50 samples collected from 2003 to 2016 in Brazil.
We identified 1 K189T substitution located outside the propeller domain of the PfK13 protein in 36% of samples.
Although the sample size is relatively small, these results suggest that P. falciparum artemisinin-resistant mutants do not exist in Brazil, thereby supporting the continuation of current treatment programs based on artemisinin-based combination therapy.
|Number of pages||4|
|Journal||Revista Da Sociedade Brasileira De Medicina Tropical|
|Publication status||Published - 21 Feb 2019|