[1] Afyon Kocatepe Univ, Sch Med, Dept Microbiol, Afyon, Turkey
[2] Afyon Kocatepe Univ, Sch Med, Dept Paediat, Afyon, Turkey
[3] Hungarian Acad Sci, Vet Med Res Inst, H-1581 Budapest, Hungary
[4] Zubeyde Hanim Matern Hosp & Childcare Ctr, Afyon, Turkey
[5] Fac Vet Med Bari, Dept Publ Hlth & Zootecn, Bari, Italy