Perkins, B.A., Flood, J.M., Danila, R., et al. De Kruif, P. Microbe Hunters . Blue Ribbon Books, 1926. Pettersson, J., Nordfelth, R., Dubinia, E., et al. Modulation of virulence factor expression by pathogen target cell contact.
New findings suggest mutation is more complicated than anyone thought.
A brief biographical heritage. Binder, S., Levitt, A.M., Sacks, J.J., et al. An emerging infectious disease. Return of the plagues. Lancet 352 Suppl.