This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pediatrics
The most common symptom of AIDS in an infant is 
Select and explain. 
A. Gastrointestinal infection, B. Persistent cough, C. Failure to thrive, D. Lymphadenopathy
A: Gastrointestinal infection
Answer: A: Gastrointestinal infection 
Explanation: Clinical features in an HIV infected infant is:Recurrent GI infection and oral thrush is commonly foundClinical features in older children:Growth failureFeverDiarrheaSecondary infection(Refer: OP Ghai's Textbook of Pediatrics, 8th edition, pg no. 202)