This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AIIMS 2018, Subject name: Pediatrics
How long should a child be isolated after being diagnosed with bacterial meningitis to prevent fuher transmission? 
Select and explain. 
A. Till 24 hours after staing antibiotics, B. Till cultures become negative, C. Till antibiotics course is complete, D. Till 12 hrs after admission
A: Till 24 hours after staing antibiotics
Answer: A: Till 24 hours after staing antibiotics 
Explanation: - CSF becomes sterile within 24 of initiation of appropriate antibiotic therapy. - Hence, child should be isolated for 24 hrs after staing antibiotics to prevent fuher transmission.