1. Laboratory of Immunology and Molecular Biology Health Sciences Institute Federal University of Bahia Salvador Bahia40110‐100Brazil
2. National Center for Research and Conservation of Aquatic Mammals Brazilian Navy Itamaracá, Pernambuco53900‐000Brazil
3. Veterinary Medicine School Federal University of Bahia Salvador Bahia40170‐100Brazil
4. Instituto de Ciências da Saúde Universidade Federal da Bahia Avenida Reitor Miguel Calmon s/n, Vale do Canela Salvador Bahia40110‐100Brazil.