It is likely that scientists may, some time in the near future, be able to destroy viri by bombarding it with frequencies that resonate with the particular virus.
Every object resonates at a particular frequency. When the amplitude of the frequency is increased sufficiently, an object will be destroyed.
Recent experiments have shown that viruses can be killed by the pulsations of lasers at the right frequency. The present-day understanding of this technology, however, involves trial-and-error.
Imagine what virus eradication techniques will be possible when scientists move out of the current drug paradigm, and into the understanding of resonance.
source: Live Science February 5, 2008