TABLE 3.
Effects of mixed infection in in vitro study of different concentrations of each strain
| Mixed culturea | Result for strain concn at ratiob:
|
||||
|---|---|---|---|---|---|
| 1:1 (104:104) | 1:10 (103:104) | 1:100 (103:105) | 10:1 (104:103) | 100:1 (105:103) | |
| vacA s1-m1-cagA+ (slow)- vacA s2-m2-cagA− (fast) | |||||
| s | Mixed | Mixed | s2 | Mixed | Mixed |
| m | Mixed | Mixed | s2 | Mixed | Mixed |
| cagA | Mixed | Mixed | Negative | Mixed | Mixed |
| vacA s2-m2-cagA− (slow)- vacA s1-m1-cagA+ (fast) | |||||
| s | Mixed | Mixed | s1 | Mixed | Mixed |
| m | Mixed | Mixed | s1 | Mixed | Mixed |
| cagA | Mixed | Mixed | Positive | Mixed | mixed |
| vacA s1b-m1-cagA+ (slow)- vacA s1a-m1-cagA+ (fast) | |||||
| s1 subtype | Mixed | Mixed | s1a | Mixed | Mixed |
| vacA s1a-m1-cagA+ (slow)- vacA s1b-m1-cagA+ (fast) | |||||
| s1 subtype | Mixed | Mixed | s1b | Mixed | Mixed |
a
+, positive; −, negative.
b
Ratio of CFU (in parentheses) from each strain when we initially made a mixture of two strains.