TABLE 4.
Strain | Adherencea (%)
|
||
---|---|---|---|
Chang cells | HeLa cells | A549 cells | |
O35E | 44.0 ± 6.6 | 42.6 ± 7.6 | 25.9 ± 11.2 |
O35EkdtA | 20.6 ± 6.4* | 19.0 ± 6.3* | 25.1 ± 2.6 |
Adherence of M. catarrhalis organisms to human epithelia is expressed as mean (± standard deviation) percentage of bacteria attached to the human cells, based on the number of original bacteria that were added to the well. *, compared with O35E (P < 0.01, using chi-square test).