parasitic worms Soil-transmitted helminth infections Soil-Transmitted Helminth Infections "Soil Transmitted Helminths" "Soil-transmitted helminth infections Fact sheet N°366" Soil-transmitted Helminth Infections Fact Sheet No. 366 parasitic infections Soil-Transmitted Helminth Infections 1.5 billion people -- 24% of the world's population Soil-transmitted helminth infections "Soil-transmitted helminth infections Fact sheet N°366" Soil-transmitted helminth infections Source David Addis recently wrote Source STH According to the World Health Organization (WHO) helminth According to the World Health Organization (WHO) According to the World Health Organization (WHO) 1.5 billion people -- 24% of the world's population Soil-Transmitted Helminth Infections 1.5 billion people -- 24% of the world's population Soil-Transmitted Helminth Infections "Soil-transmitted helminth infections Fact sheet N°366" 1.5 billion people -- 24% of the world's population Soil-transmitted helminth infections Fact sheet N°366 affect nearly 25 percent of the people on this planet According to the World Health Organization (WHO) STH According to the World Health Organization (WHO) According to the World Health Organization (WHO) According to the World Health Organization (WHO) According to the World Health Organization (WHO) "Soil-transmitted helminth infections Fact sheet N°366" Soil-transmitted helminth infections soil transmitted helminths (STH helminth 1.5 billion people -- 24% of the world's population parasitic infections helminth "Soil Transmitted Helminths" "Soil-transmitted helminth infections Fact sheet N°366" "Soil-transmitted helminth infections Fact sheet N°366" "Soil-transmitted helminth infections Fact sheet N°366" helminth Soil-transmitted helminth infections Fact sheet N°366 "Soil-transmitted helminth infections Fact sheet N°366" Soil-transmitted helminth infections