ABSTRACT
Acknowledgments ...................................................................................................................................321 References ...............................................................................................................................................321
Most of the developed countries today are generally considered “dehelminthized,” meaning that the prevalence (percentage of infected people) and medical impact of diseases caused by helminths, that is, ukes (Trematoda), tapeworms (Cestoda), parasitic roundworms (Nematoda), and spiny-headed worms (Acanthocephala), are negligible compared to other diseases. In contrast, helminthoses such as lariasis, schistosomiasis and infections with gastrointestinal nematodes, lung ukes, and many others represent serious medical and socioeconomic problems in tropical countries.1
