Question 33
Microorganisms and HealthWhich of the following diseases could be exclusively associated with a river basin?
- A.Malaria
- B.Syphilis
- C.Onchocerciasis
- D.Cholera
- E.Poliomyelitis
Show the answer and explanation
Answer: C (Onchocerciasis)
Explanation
Onchocerciasis (river blindness) is spread by blackflies (Simulium), which breed in fast-flowing rivers, so it is found along river basins.