Some factors influencing the virulence for mice of Bordetella pertussis by the intracerebral route.

Abstract

We cannot say that the intracerebral route or the intranasal route is a satisfactory method of determining the virulence of Bordetella pertussis for mice, but only that the intracerebral route determines the intracerebral virulence and the intranasal route the intranasal virulence, for these do not run hand in hand.