<prompt> Most common organism involving allograft transplant:BacteriaFungiVirusParasite  <response>: Ans. c VirusesRef: Bailey 26th edition, Page 1415 Most common infection in allograft transplant--Viral infection Risk of infection is the greatest during first 6 months Chemoprophylaxis is important for high-risk patients Cytomegalovirus is a major problem Most common malignancy after transplant: Post-transplant lymphoproliferative disorder skin cancers squamous cell cancer 