IFNG and cytomegalovirus infection: The allelic distribution of IFNG +874 A/T polymorphism in the patients with CMV infection was no different from recipients without CMV infection (A vs. T, OR = 1.01, 95% CI = 0.79–1.30, p = 0.90) nor controls (A vs. T, OR = 0.99, 95% CI = 0.78–1.25, p = 0.90).