1. Unit for Basic and Applied Microbiology School of Natural Sciences Autonomous University of Queretaro Santiago de Querétaro Queretaro 76230 Mexico
2. Department of Veterinary Medicine School of Natural Sciences Autonomous University of Queretaro Santiago de Querétaro Queretaro 76230 Mexico
3. Center for Infectious Diseases National Institute of Public Health Cuernavaca Morelos 62100 Mexico
4. School of Medicine Autonomous University of Queretaro Santiago de Querétaro Queretaro 76230 Mexico
5. The Marine Mammal Center 2000 Bunker Road Sausalito CA 94965 USA