Biology / Unit 9 Bio 1937 short lesson, about 20 seconds
Combination Therapy Against a Fast-Mutating Virus
Captions available
The idea
Combining antiviral drugs that target different replication steps makes resistance to all of them far less likely.
In practice
Drug classes exist against four replication steps; HIV therapy mixes drugs from two or three classes so resistance to all is unlikely.
Where people slip
A single antiviral drug alone lets a fast-mutating RNA virus evolve resistance quickly — combination therapy slows that evolution.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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