Don Wiley was an x-ray crystallographer
I never read over there, so I had no idea.
.....Wiley, an expert on how the immune system fights infection, had recently studied the Ebola virus, HIV, herpes, and influenza.
The professor was most widely known for his work in X-ray crystallography. He was widely regarded as the nation's foremost expert in using special X-ray cameras and mathematical formulas to make high-resolution images of viruses.