Controlling cystic echinococcosis: outlook in the 21st century
Cystic echinococcosis (CE) is a serious public health problem in South America, one that the Pan American Health Organization (PAHO) has included in its Plan of Action for the Control of Neglected Infectious Diseases. A logical framework for CE control was defined: this includes establishing the objective to be achieved (eradication or elimination as a public health problem) and determining levels of endemicity which serve as a guide for establishing frequencies of intervention (high endemicity, endemic, and low endemicity, according to rates in the different hosts).