1. Institute for Parasitology; University of Veterinary Medicine Hannover; Hannover Germany
2. College of Veterinary Medicine; Department of Molecular Biomedical Sciences; North Carolina State University; Raleigh NC USA
3. Molecular Immunology Group; Department of Pathology and Pathogen Biology; Royal Veterinary College; Hatfield UK
4. Helmholtz Zentrum München; German Research Center for Environmental Health; Institute of Molecular Immunology; Munich Germany