Table 5: ISHLT recommendations for anti-viral prophylaxis and pre-emptive therapies [107].

Donor/Recipient cytomegalovirus status	Donor status positive	Donor status negative
Recipient status positive	Oral vanganciclovir for 3 months or IV ganciclovir for 1-3 months or Monitor viral load with nucleic acid testing or cytomegalovirusantigenemia assay, and if required, initiate preemptive therapy with IV ganciclovir or oral valganciclovir	Oral valganciclovir for 3 months or IV ganciclovir for 1-3 months or Monitor viral load with nucleic acid testing or cytomegalovirusantigenemia assay, and if required, initiate preemptive therapy with IV ganciclovir or oral valganciclovir
Recipient status negative	Oral vanganciclovir for 3 months or IV ganciclovir for 1-3 months	Prophylaxis with acyclovir