“…It is of endemic incidence in red foxes (Vulpes vulpes) population throughout North America and Europe (Sreter et al, 2003;Nevarez et al, 2005, Saeed et al, 2006. Since the first findings in a dog in the UK (Cobb & Fisher, 1992), it was detected in domestic dogs throughout the Europe (Reilly et al, 2000;Unterer et al, 2002;Rinaldi et al, 2007;Taubert et al, 2009) including the countries neighbouring the Czech Republic (Barutzki & Schaper, 2003;Taubert et al, 2009). Adults are characterized by horizontal cuticular ridges in the anterior part (Bowman, 2000;Rinaldi et al, 2007), females lay eggs that hatch within the respiratory tract.…”