Once the pathogen or disease causing agent is identified, researchers should have better answers.

Is it possible we're seeing the results of some unknown disease agent?

Every year, thousands of ticks are sent in from around the state to be tested for disease agents.

Prusiner's initial research was aimed at purifying the disease agent.

I had little natural defense against environmental disease agents, since Proton is nearly sterile.

Still, scientists have given relatively little attention to specific co-factors that help determine who becomes ill from a particular disease agent.

The immune system can detect and identify many different kinds of disease agents.

It was a tiny disease agent from Tom's sneeze.

In addition, he owns patents for several Alzheimer's disease therapeutic agents.

It expects to identify other possible disease agents for testing in the future.