TABLE 4.
Percentages of individuals with serum antibodies to C. trachomatis, pneumoniae, or psittaci antigens as determined by microimmunofluorescence test
| Bacteria | Serum antibody | % of patients with acute C. trachomatis urogenital infection (n = 25) | % of healthy blood donors (n = 19) | Statistical analysis (chi-square test) between both groupsa |
|---|---|---|---|---|
| C. trachomatis | IgG | 44 | 11 | 5.81; P = 0.016 |
| IgM | 4 | 0 | NS | |
| IgA | 0 | 0 | NS | |
| C. pneumoniae | IgG | 72 | 42 | 3.99; P = 0.046 |
| IgM | 0 | 0 | NS | |
| IgA | 0 | 0 | NS | |
| C. psittaci | IgG | 0 | 0 | NS |
| IgM | 0 | 0 | NS | |
| IgA | 0 | 0 | NS |
a
NS, not significant.