New research suggests that an “often-overlooked” parasitic infection, already linked to bladder cancer, may also raise the risk of cervical cancer.

These bacteria and other microscopic parasites can cause irritating skin conditions. Swimmer's itch, otherwise known as cercarial dermatitis, is one such condition that can affect humans.

Parasites can cause digestive issues, fatigue, skin problems, anemia, and more. Symptoms vary, often mistaken for other conditions. Proper testing is key for diagnosis.

Millions of people worldwide are affected by African sleeping sickness, Chagas disease and other life-threatening infections caused by microscopic parasites borne by insects such as the tsetse fly.