Microbiology The following statements about meningococcal meningitis are true except A The source of infection is mainly clinical case B The disease is more common in dry and cold months of the year C Chemoprophylaxis of close contacts of cases is recommended D The vaccine is not effective in children below 2 yrs of age 💡 Explanation The following statements about meningococcal meningitis are true except ✓ Correct Answer: A. The source of infection is mainly clinical case