| Antiviral | EC50 ratio | Phenotype | Strain | Source | Marker | Assay | Reference |
|---|---|---|---|---|---|---|---|
| Letermovir | 2.90 | Low level resistance | Laboratory strain | Recombinant | Details | New Locus of Drug Resistance in the Human Cytomegalovirus UL56 Gene Revealed by In Vitro Exposure to Letermovir and Ganciclovir. (Sep 2018) |
| Mutant | Resistances |
|---|---|
| V236L |
Letermovir:
|
| V236M |
Letermovir:
|