Volume 11, Number 2—February 2005
Research
Bacterial Zoonoses and Infective Endocarditis, Algeria
Table 4
Discrepant results between blood culture, cardiac valve culture, cardiac valve PCR, and serologic testing for 9 patients*
| Patient | Blood culture | Cardiac valve culture | 16S rRNA PCR | PCR targeting another gene | Histologic analysis | Serologic testing | Conclusions |
|---|---|---|---|---|---|---|---|
| 1† | Negative | Candida krusei | Streptococcus spp. | RpoB: negative SOD: negative 18-28S ITS: C. parapsilosis | NP | Negative | C. parapsilosis |
| 2‡ | Negative | Polymicrobial | Streptococcus mitis | S. mitis | A | Negative | S. mitis |
| 3‡ | Negative | CNS | Haemophilus paraphrophilus | NP | A / BGN | Negative | H. paraphrophilus |
| 4‡ | Negative | CNS | Bartonella quintana | B. quintana | NP | NP | B. quintana |
| 5‡ | S. mitis | Staphylococcus aureus | Streptococcus gordonii | S. gordonii | A / CGP | Negative | S. gordonii |
| 6† | H. influenzae | NP | NP | NP | NP | 1:1,600 Positive PCR on serum samples | B. quintana |
| 7† | Streptococcus intermedius | Streptococcus intermedius | S. mutans | S. mutans | A | NP | S. mutans |
| 8‡ | Negative | Corynebacterium spp. | Bacillus cereus | B. cereus | A | Negative | B. cereus |
| 9‡ | Negative | S. mitis | Enterococcus gallinarum | E. gallinarum | A / CGP | Negative | E. gallinarum |
*PCR, polymerase chain reaction; NP, not performed; CNS, coagulase-negative Staphylococcus; BGN, bacillus gram negative; CGP, cocci gram positive.
†The microorganisms detected in valve culture were contaminants.
‡The microorganisms were misidentified.
