Objective: To determine the prevalence of hydatidosis in dromedaries. Methods: 438 dromedaries were examined in five regions of Iran from 20 March, 2010 to 19 March, 2a0n1d1 .f eTrhtieli trye lraattieosn swhaisp abneatlwyzeeedn uhsoisntg a cghei -asnqdu athree tmeseta.n number of hydatid cysts, and prevalence Results: One hundred and thirty five out of 438 (30.82%) camels harboured hydatid cysts of Echinococcus granulosus. Number of cysts was 700 with 72.5% lung cyst. The highest rate of ipnafretc otifo nIr awna)s w thhailte 5 t4h (e4 0l%ow) oefs tc a6m (4e.l4s% w) aosf fcoaumndel sin w tahse fKohuonrda siann SReamznaavin rpegroiovnin (cine . thInef encotritohn- ewaasst bhyig hlievre ri n(1 2>.165% )y. eBaorsth a lgiev egrr aonudp . luTnhges m toogset tchoemr cmoonnsltyit uintefedc 1te4.d8 %o rogfa ninsf ewcetiroen l.u An gcso m(72p.a5r%is) ofnol lfoowunedd cthyastt sh oyfd lautindg cwyesrtse ocfa llcivifeire dh a(2d4 .a4 2h%ig).h Tehr ef emrteilainty n ruamteb (e3r2 .o5f7 %p)r othtoasnc othleacte osf pleurn gm (L1 9i%n )t; hweh liulen gm foesrtt iloef cgyesntost ywpaess .h Tighhee rm tehaann nthuamt boef rl iovfe rc ycsytsst si.n Fienrfteiclete odr lsitveerri laen md ilguhnt gbse w dause 1 t-o5 t hcey sdtsif.f eTrheen ti nstpeencsiietys oorf infection increased with age. Conclusions: The results of current study can make a background data for implementing hydatid control programs and warrant the importance of camel in public health.

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