Plague Busters

The president was attacked!!!

During a war speech to propagate peace, the president was brutally assaulted by a virulent-syringe-wielding-terrorist with an unknown virus.
With no apparent cure for this virus, the president rests between life and death.

However.

You can save his life! with new miniaturization techniques, the "Intruder-one" ship will decrease in size enough so that we can safely inject it into his body!

If you can kill at least 80% of the virus, he might be saved!