FIG. 2.

Growth of the M. avium serotype 4 strain, L. pneumophila JR32, and E. coli HB101 when they were separated from A. polyphaga by a 0.1-μm-pore-size polycarbonate membrane (parachamber). Each parachamber experiment was performed three times in Acanthamoeba buffer at 33°C. The values shown are the mean numbers of CFU (± standard deviations) determined at zero time and at 1, 7, and 14 days after inoculation.