Malaria is caused by which organism?

✅ Correct Answer: C — Protozoa

Malaria is caused by Plasmodium, a protozoan parasite. There are 4 main species: P. falciparum (most dangerous), P. vivax, P. malariae, and P. ovale. It is transmitted to humans through the bite of an infected female Anopheles mosquito. Symptoms: cyclic fever, chills, sweating, headache, and body ache.

❌ Why other options are wrong:

• A. Bacteria — Bacteria cause diseases like Tuberculosis (TB), Cholera, Typhoid; not Malaria.

• B. Virus — Viruses cause diseases like Dengue, HIV, Influenza; not Malaria.

• D. Fungus — Fungi cause diseases like Ringworm, Athlete's foot; not Malaria.

📝 Important Note: Malaria is caused by Plasmodium (Protozoa), transmitted by female Anopheles mosquito. Dengue is caused by Virus, transmitted by Aedes mosquito. Quinine (from Cinchona bark) was the first anti-malarial drug. Malaria is a major health concern in tropical countries including India.