Public health workers and parasitologists have long been interested in estimating numbers
infected with particular parasite species. Recent changes in social and economic conditions …

Simultaneous and sequential transmission of multiple parasites, and their resultant
overlapping chronic infections, are facts of life in many underdeveloped rural areas. These …

Background Quantifying the burden of parasitic diseases in relation to other diseases and
injuries requires reliable estimates of prevalence for each disease and an analytic …

In areas of rural poverty in the tropics and subtropics, more than 700 million persons are
infected with the parasites Necator americanus and Ancylostoma duodenale. The adult …

Background Schistosomiasis is one of the world's most prevalent infections, yet its effect on
the global burden of disease is controversial. Published disability-adjusted life-year (DALY) …

Objectives: To summarize new knowledge on the range of disease due to chronic
schistosomiasis and examine the debilitating burden of both light and heavy infection; to …

Helminth infections caused by soil-transmitted helminths (STHs) and schistosomes are
among the most prevalent afflictions of humans who live in areas of poverty in the …

The scientific study of human hookworm infection began at the dawn of the twentieth
century. In recent years, there have been dramatic improvements in our understanding of …

Intestinal nematode infections are among the most common infections of humans in
developing countries, but precise estimates of the populations at risk of infection, morbidity …

Parasitic infections, caused by intestinal helminths and protozoan parasites, are among the
most prevalent infections in humans in developing countries. In developed countries …