1. Microbiology Department, Facultad de Medicina Universidad Autónoma de San Luis Potosí San Luis Potosí México
2. Pediatrics Division Hospital Central “Dr. Ignacio Morones Prieto” San Luis Potosí México
3. Viral and Human Genomics Laboratory, Facultad de Medicina Universidad Autónoma de San Luis Potosí San Luis Potosí México
4. Neonatology Department, Pediatrics Division Hospital Central “Dr. Ignacio Morones Prieto” San Luis Potosí México
5. Pediatrics Department Hospital del Niño y la Mujer "Dr. Alberto López Hermosa" San Luis Potosí México