Soil-transmitted helminth infections are among the most common infections worldwide and affect the poorest and most deprived communities. They are transmitted by eggs present in human faeces which in turn contaminate soil in areas where sanitation is poor.
A species is a distinct group of animals or plants that have common characteristics and can breed with each other. Your pet Fido is a member of the dog species. All members of the same species have similar genes and can interbreed and produce offspring. A subspecies is a division of a species, and a genus includes several different species. Biologists use these categories to classify organisms, usually with Latin names like Canis familiaris, or domestic dog..
A species is a category within the classification system. Living things of the same type belong to the same species. For example, humans are one species and dogs are another species. Individuals of the same species can reproduce to make more individuals of the same species. Two individuals belonging to different species cannot normally reproduce together. If they do, their offspring is usually infertile and unable to reproduce.