1. Department of Microbiology, Faculty of Veterinary Medicine and Zootechnics, Universidad de Guayaquil, Guayaquil, Ecuador
2. Department of Microbiology, Faculty of Health Sciences, Universidad Estatal de Milagro (UNEMI), Milagro, Ecuador
3. Department of Parasitology, Faculty of Medical Sciences, Universidad Católica de Santiago de Guayaquil, Guayaquil, Ecuador
4. Invertebrates Institute, Miguel Lillo Foundation, San Miguel de Tucumán, Argentina