Abstract
Summary and conclusions
Because of the inconsistency obtained in attempted passage of the etiological agent to susceptible guinea pigs, it is postulated that the etiological agent was not being passed at all. It appeared that many of the inoculations merely served to prematurely hasten an unknown etiological agent on its way, culminating in the disease pattern and the epizootic which has been described.
An epizootic of unknown etiology has been observed in guinea pigs. The disease was highly fatal. The symptoms and pathology were unlike any previously described disease of guinea pigs.
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