parasitic infection

A parasitic infection occurs when a parasite invades and lives on or inside a host organism, often causing harm. These infections can result from various parasites, including protozoa, helminths, and ectoparasites, and can affect humans, animals, and plants. Symptoms and severity vary widely depending on the type of parasite and the infected host. Understanding parasitic infections is crucial for prevention, diagnosis, and treatment, as they can lead to significant health issues worldwide.