Which is not a protistan disease

Options

A. Giardiasis
B. Amoebiasis
C. Sleeping sickness
D. Elephantiasis.

Answer

To determine which of the listed diseases is not a protistan disease, we will analyze each option based on the causative organisms.

1. **Giardiasis**:
- Causative Organism: Giardia lamblia
- Classification: This is a protozoan parasite.
- Conclusion: Giardiasis is a protistan disease.

2. **Amoebiasis**:
- Causative Organism: Entamoeba histolytica
- Classification: This is also a protozoan parasite.
- Conclusion: Amoebiasis is a protistan disease.

3. **Sleeping Sickness**:
- Causative Organism: Trypanosoma (specifically Trypanosoma brucei)
- Classification: This is a protozoan parasite.
- Conclusion: Sleeping sickness is a protistan disease.

4. **Elephantiasis**:
- Causative Organism: Wuchereria bancrofti
- Classification: This is a filarial worm, which is classified as a nematode (roundworm).
- Conclusion: Elephantiasis is not a protistan disease.

**Final Answer**: The disease that is not a protistan disease is **Elephantiasis**.

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