Question

Which one of the following conditions though harmful in itself, is also a potential saviour from a mosquito borne infectious disease:

• A. Thalassaemia
• B. Sickle cell anaemia
• C. Pernicious anaemia
• D. Leukemia

Answer 1

Answer: (B)

Sickle cell anaemia

Answer 2

Sickle cell anemia is a genetic disorder caused by a mutation in the hemoglobin gene. While it is a harmful condition in itself and can cause various health problems, individuals with sickle cell trait (heterozygous for the gene) are less susceptible to contracting malaria, a mosquito-borne infectious disease. This is because the sickled red blood cells are less favorable for the malaria parasite's growth and survival. Therefore, in regions where malaria is prevalent, having the sickle cell trait can provide some level of resistance to the disease, which is why it's considered a potential savior from malaria. However, it's essential to note that sickle cell anemia itself is a severe health condition with its own set of complications.

So, the correct option is (B): Sickle cell anaemia