Table 3.
Description of 12 Cases of Potential Microbiological Bacterial Transfer Eventsa
| Patient | Target MDRO | Terminal Clean Protocol | Patient- Environment | Environment-Patient | Indeterminate | Presence of Molecularly Related Isolates | Presence of Molecularly Discordant MDRO Isolatesb |
|---|---|---|---|---|---|---|---|
| A | MRSA | Bleach | X | X | |||
| B | MRSA | Bleach | X | X | X | ||
| C | VRE | Quat. | X | X | |||
| D | VREc | Bleach + UV | X | ||||
| E | VREc | Bleach + UV | X | ||||
| F | VREc | Bleach + UV | X | ||||
| G | VRE | Bleach | X | X | |||
| H | CDI | Bleach | X | X | X | ||
| I | CDI | Bleach | X | X | |||
| J | CDI | Quat. | X | X | X | ||
| K | CDI | Quat. | X | X | X | ||
| L | CDI | Quat. + UV | X | X | |||
| Total | 12 | 4 (33%) | 4 (33%) | 4 (33%) | 6 (50%) | 7(58%) |
Note. MRSA, methicillin resistant Staphylococcus aureus; VRE, vancomycin-resistant enterococci; MDR ABC, multidrug-resistant Acinetobacter baumanii complex; Quat., quaternary ammonium; CDI, Clostridium difficile infection.
a
Terminal cleaning protocol used for disinfecting the room prior to admission: bleach, bleach+UV irradiation, Quat., Quat.+UV irradiation.
b
Subjects could have both molecularly related and molecularly discordant transfer events if>1 ribotype of a target MDRO species was identified.
c
Molecular relatedness unknown due to noninterpretable pulsed-field gel electrophoresis (PFGE).