Then the parasites return to the bloodstream and ... hitching a ride on an aircraft, causes disease. Travelers to malarial areas have a high risk of catching a serious infection because they ...

New insights into the mechanisms that cause more severe cases of schistosomiasis—a disease caused by parasitic worms and ...

Infectious diseases are disorders that are caused by organisms, usually microscopic in size, such as bacteria, viruses, fungi, or parasites that are passed, directly or indirectly, from one person to ...

Kala-azar, also known as black fever, is a zoonotic disease affecting internal organs that is caused by protozoan parasites of the Leishmania genus. Symptoms include fever, severe anemia, abdominal ...