| Antiviral | EC50 ratio | Phenotype | Strain | Source | Marker | Assay | Reference |
|---|---|---|---|---|---|---|---|
| Cidofovir | 1.60 | No resistance | Clinical Isolate | Details | A new locus of foscarnet resistance in the cytomegalovirus UL54 DNA polymerase gene among uncharacterized mutations in recent clinical trials. (Feb 2026) | ||
| Foscarnet | 5.80 | High level resistance | Clinical Isolate | Details | A new locus of foscarnet resistance in the cytomegalovirus UL54 DNA polymerase gene among uncharacterized mutations in recent clinical trials. (Feb 2026) | ||
| Ganciclovir | 1.70 | No resistance | Clinical Isolate | Details | A new locus of foscarnet resistance in the cytomegalovirus UL54 DNA polymerase gene among uncharacterized mutations in recent clinical trials. (Feb 2026) |
| Mutant | Resistances |
|---|---|
| E949Q |
Cidofovir:
|
| E949Q |
Foscarnet:
|
| E949Q |
Ganciclovir:
|