Disease Definition: Soil-transmitted helminthiasis (STH) is a type of helminth infections caused by different species of roundworms. It is caused specifically by those worms which are transmitted through soil contaminated with faecal matter and are therefore called soil-transmitted helminths.
Disease Statistics: More than 1.5 billion people, or 24% of the world’s population, are infected with soil-transmitted helminth infections worldwide. Infections are widely distributed in tropical and subtropical areas, with the greatest numbers of victims. It is analysed that around 10% of Australia's population are being affected every year