protozoan parasites

Protozoan parasites are single-celled organisms that can invade and live in the bodies of hosts, often causing diseases. They are typically spread through contaminated water, food, or vectors like insects. Common protozoan parasites include Plasmodium, which causes malaria, and Giardia, which leads to gastrointestinal issues. These parasites can reproduce within the host, leading to various health problems, particularly in individuals with weakened immune systems. Prevention often involves good hygiene, safe drinking water, and sometimes medication to treat or prevent infection. Understanding them is important for public health and disease control efforts.