Surgery What should be the density of microfilaria in blood to make it infective to the vector A 5 microfilaria / drop of blood B 10 microfilaria / drop of blood C 15 microfilaria / drop of blood D 20 microfilaria / drop of blood 💡 Explanation What should be the density of microfilaria in blood to make it infective to the vector ✓ Correct Answer: C. 15 microfilaria / drop of blood