Drug Resistance, Multiple, Viral

**Definition:** The ability of viruses to resist or to become tolerant to several structurally and functionally distinct drugs simultaneously. This resistance phenotype may be attributed to multiple gene mutation.

**Tree numbers:** - G06.225.420.500 - G06.920.225.500 - G07.690.773.984.269.420.500 - G07.690.773.984.300.750

**Synonyms:** - Multidrug Resistance, Viral - Multiple Antiviral Drug Resistance