JAMB - Biology (2025 - No. 21)
Which of the following statements about poliomyelitis is correct?
It affects both young and old.
It is a bacterial disease.
There is no vaccination against the disease.
It is capable for paralysing the limbs.
Explicació
Poliomyelitis (polio) invades the nervous system and can cause total paralysis, typically in the legs (limbs), in a small percentage of cases.
A. It affects both young and old. While anyone who is unvaccinated can contract polio, it mainly affects children under 5 years of age.
B. It is a bacterial disease. Polio is a highly contagious viral disease caused by the poliovirus.
C. There is no vaccination against the disease. Polio is preventable by effective vaccines, which have reduced cases by over 99% globally.