Add Yahoo as a preferred source to see more of our stories on Google. While the parasites may be small, their bite brings a risk of infectious diseases, health experts with WebMD warn. "Tick-borne ...

University of Florida scientists are putting out a BOLO for the winged insects known to spread a deadly, heartbreaking ...

Almost one in four blood bank supplies in certain regions of Africa may have malaria parasites in them, a new study suggests. UK scientists reviewed 26 studies that measured levels of Plasmodium ...

Entamoeba histolytica infects nearly 50 million people each year and kills around 70,000. It’s a shape-shifting parasite that invades the human gut, often causing mild symptoms like diarrhea. But in ...

Diseases caused by tick bites are increasing in Michigan, state officials say, and they urge those spending time outdoors to watch for the arachnids while exploring this summer. While the parasites ...