1. Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Anthrax Reference Institute of Italy, Foggia, Italy.
2. Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise “G. Caporale,” Teramo, Italy.
3. ASP Potenza–Department of Prevention, Health and Animal Welfare, Veterinary Service, Melfi, Potenza, Italy.
4. San Carlo Hospital, Department of Infectious Diseases, Potenza, Italy.
5. Istituto Superiore di Sanità, Rome, Italy.