1. Centro de Biomedicina, Carrera de Medicina, Universidad Central del Ecuador, Quito, Ecuador.
2. Servicio de Terapia Intensiva, Hospital Oncológico Sociedad de Lucha Contra el Cáncer (SOLCA), Quito, Ecuador.
3. Department of Parasitology, Kochi Medical School, Kochi University, Kochi, Japan.
4. Laboratory of Veterinary Parasitology, Nippon Veterinary and Life Science University, Musashino, Japan.