1. Academic Unit of Chemical Sciences and Health; Technical University of Machala; Machala Ecuador
2. Institute of pharmacy and Food; Havana University; Havana Cuba
3. University of Guayaquil; Guayaquil Ecuador
4. Laboratory of Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences; Antwerp University; Antwerp Belgium
5. Department of Parasitology; Institute of Tropical Medicine “Pedro Kouri”; Havana Cuba