Helminths (from the Greek Helmins, meaning worm) include three groups of parasitic worm, large multicellular organisms with complex tissues and organs. Helminths do not replicate within the human host except Strongyloides stercoralis. Prevalence is commonly combined with worm burden (intensity of infection), which is commonly measured by the number of eggs per gram (EPGs) of faeces for intestinal helminths and schistosomes. Based on EPGs and their association with morbidity, individuals are classified into categories of light, moderate and heavy infection by the WHO. In the case of soil‐transmitted helminths, the WHO recommends use of both prevalence and intensity of infection to classify communities into transmission categories—category I (high), category II (medium), and category III (low). The neglected status of the helminthiasis should be addressed on community levels and globally all over the world.
Part of the book: Human Helminthiasis