
Protozoan parasite
Protozoan parasites are single-celled organisms that live in or on other organisms, such as humans, to survive and reproduce. They can cause diseases by invading tissues or blood, leading to symptoms like diarrhea, fever, or illness. These parasites are often transmitted through contaminated food, water, or insect bites. Examples include Plasmodium (causes malaria) and Giardia (causes gastrointestinal issues). Because they are microscopic, they require specific diagnostic tests to identify. Proper hygiene, sanitation, and preventive measures can help reduce the risk of infection from protozoan parasites.