1 Centro de Biomedicina, Universidad Central del Ecuador, Quito, Ecuador. Electronic address: manuelcalvopina@gmail.com.
2 Centro de Biomedicina, Universidad Central del Ecuador, Quito, Ecuador.
3 Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido, Japan.
4 Centro de Biomedicina, Universidad Central del Ecuador, Quito, Ecuador; PROMETEO, Secretaria Nacional de Educación Superior, Ciencia, Tecnología e Innovación (SENESCYT), Ecuador; Department of Parasitology, Kochi Medical School, Kochi University, Kochi, Japan.