An invasive, dog-killing parasite is now lurking in Southern California. In new research this week, scientists say they’ve confirmed the newfound spread of the flatworm Heterobilharzia americana to ...

Blood flukes, or schistosomes, are parasitic flatworms that can live inside people for decades, and they make a rather gruesome journey to get there — after hatching in water contaminated by feces, ...

An international group of scientists led by Tim Anderson Ph.D., at the Texas Biomedical Research Institute and Philip LoVerde Ph.D., at the University of Texas Health Science Center at San Antonio has ...

Surgery is not strictly a matter of cutting into patients and cutting something out. The A.M.A. last week heard about a new operation designed not to cut out but to filter out the tiny parasites that ...