This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
All are common oppounistic infections seen early in renal transplant recipients, EXCEPT: 
Select and explain. 
A. Herpes virus, B. Oral candidiasis, C. Urinary tract infections, D. Nocardia
D: Nocardia
Answer: D: Nocardia 
Explanation: Nocardia infection is seen usually after 6 months in renal transplant recipients. Common Oppounistic Infections in Renal Transplant Recipients: Peritransplant period (<1 month) Wound infections Herpesvirus Oral candidiasis Urinary tract infection Early (1-6 months) Pneumocystis carinii Cytomegalovirus Legionella Listeria Hepatitis B Hepatitis C Late (>6 months) Aspergillus Nocardia BK virus (polyoma) Herpes zoster Hepatitis B Hepatitis C Ref: Harrisons principles of internal medicine, 18th edition, Page: 2333.