a fever
Examples
The moment people talk of "implementing" instead of "doing," and of "finalizing" instead of "finishing," the organization is already running a fever.
If what Proust says is true, that happiness is the absence of fever, then I will never know happiness. For I am possessed by a fever for knowledge, experience, and creation.
War is an episode, a crisis, a fever the purpose of which is to rid the body of fever. So the purpose of a war is to end the war.
Feed a cold, starve a fever.
Unprofitable is a fever of the world.
Feed a cold and starve a fever.