APP and infection: Mean Aβ1-42 fluorescence intensity in Cpn-infected astrocytes, relative to that of uninfected cells, did not differ significantly at 24 hpi; however, it was elevated in infected cells at 48 and 72 hpi relative to uninfected cells from the same timepoint (Fig. 5b), indicating an increase in pro-amyloidogenic processing of APP at later times of infection.