Theileria annulata sporozoite antigen fused to hepatitis B core antigen used in a vaccination trial

animal diseases antibodies anticorps anticuerpos antigene antigens bovin cattle developmental stages electron microscopy enfermedades de los animales etapas de desarrollo ganado ganado bovino immunisation immunization infecciones por protozoos linfocitos livestock lymphocyte lymphocytes maladie des animaux microscopia microscopie microscopy protozoal infections protozoose recombinant vaccines sporozoa synthetic vaccines theileria annulata vaccin vaccines vacuna