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Control of echinococcosis/hydatidosis: present status of worldwide progress.

Progress in national and provincial control programmes directed against Echinococcus granulosus is reviewed. The results show that this parasite, because of the low basic reproductive rate in its domestic life-cycle, is unstable and is amenable to control or eradication by currently available methods. The difference between control and eradication is defined and some suggestions for extension of control are discussed.