“Short-Sighted Evolution and the Virulence of Pathogenic Microorganisms”, 1994-03-01 (; similar):
For some microorganisms, virulence may be an inadvertent consequence of mutation and selection in the parasite population, occurring within a host during the course of an infection. This type of virulence is short-sighted, in that it engenders no advantage to the pathogen beyond the afflicted host.
Bacterial meningitis, poliomyelitis and AIDS are 3 candidates for this model of the evolution of virulence.