The presence of antibodies against Echinococcus granulosus in sera from 306
humans and 390 camels in Oman was investigated by indirect haemagglutinati
on assays. Only one of the human and five of the camel sera gave positive r
eactions. The reactivities of the human sera were confirmed by ELISA. These
results, together with isolated reports of hydatid cysts, indicate that E.
granulosus is endemic in Oman, although with a low prevalence.