This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Transplantation, Subject name: Surgery
The most common complication of immunosuppression is: 
Select and explain. 
A. Malignancy, B. Graft rejection, C. Infection, D. Thrombocytopenia
C: Infection
Answer: C: Infection 
Explanation: Ans. (c) InfectionRef: Bailey 26th edition, Page 1416* Bacterial infection is most common in 1st month and is most common in those who are critically ill before and after transplant.* Viral infection is most common in 6 months--Most common is CMV > HSV* BK virus is universal in childhood causes urinary infection* Pneumocystis Jiroveci (Previously known as Pneumocystis carnii) is one important fungal infection.