slow virus

At the time, he thought the disease agent was a "slow virus," meaning one with an incubation period lasting years or decades.

Every infectious agent is different, but in general, slow viruses:

It was also known as a "slow virus," taking from 18 to 64 months to show its symp-toms.

The realization that slow viruses might be responsible reopened the inquiry.

It was believed to result from a "slow virus," now identified as a prion.

It is very likely that a slow virus, rather than simply a protein, causes brain illnesses like mad-cow disease.

It was hiding inside him, like one of the old "slow" viruses.

Because many of these viruses take a long time to produce symptoms, they are often called slow viruses.

We tend to think of it as a slow virus.

Because of its long latency, he called it a slow virus.