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Parasite-associated microbiomes in Ascaris and Trichuris nematodes: current evidence, challenges, and future directions | mSystems
Soil-transmitted helminths (STHs) refer to a group of parasitic nematode worms that infect humans and are transmitted primarily via soil contaminated with eggs or larvae passed in the feces of infected individuals. The STH species include Ascaris lumbricoides (roundworm), Trichuris trichiura (whipworm), Ancylostoma duodenale, and Necator americanus (hookworms), and Strongyloides stercoralis. Globally, these infections remain among the most prevalent neglected tropical diseases, affecting an estimated 1.5 billion people, or ~24% of the world’s population, predominantly in low- and middle-income countries (1). Among these, A. lumbricoides and T. trichiura contribute substantially to the global burden, with an estimated 772–892 million and 429–508 million infections, respectively (1, 2).