Soil-transmitted helminths are a group of intestinal worms that include Ascaris lumbricoides (giant roundworm), Trichuris trichiura (whipworm), and Ancylostoma spp. (A. duodenale, A. ceylanicum) and Necator americanus (hookworms). Despite the clear biological differences among the different species,... their transmission is characterized by the same sequence of events: (i) infected individuals excrete worm eggs through their stool in soil; (ii) under optimal conditions of moisture and temperature the excreted eggs develop into infectious stages; and (iii) finally, infection occurs through oral uptake (Ascaris, Ancylostoma and Trichuris) or skin penetration (Ancylostoma and Necator) of these infectious stages (embryonated eggs and third stage larvae) that reside in the soil and/or in the environment (referring to their common name). more

2nd. edition The new edition has been developed to make widely available to programme managers, health care workers in endemic settings, academic researchers, and other key partners, a concise source of information on strategies for MMDP for LF. It is a product of efforts to elaborate and concepts ...and approaches introduced in the previous edition, with a focus on ensuring that countries have the tools necessary to provide the essential package of care for LF. more

Treating children infected with intestinal worms is one of the simplest and most cost–effective ways to improve their health. The recommendations are intended for a wide audience, including policy-makers and their expert advisers as well as technical and programme staff at government institution...s and organizations involved in the design, implementation and expansion of programmes to control soil-transmitted helminth infections. more

2nd ed.

Coordinated Use of Anthelminthic Drugs in Control Interventions: a Manual for Health Professionals and Programme Managers