Citrobacter spp.
Morphology |
gram-negative, facultative anaerobic bacteria that appear as rods or coccobacilli
at 0.3-1 µm in diameter and 0.6-6 µm long.
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Disease |
urinary tract infections, blood stream infections, intra abdominal sepsis, brain abscesses, and pneumonia and other neonatal infection, such as meningitis, neonatal sepsis, joint infection or general bacteremia. |
Zoonosis |
None.
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Host Range |
Human and animals and aquatic organisms (catfish).
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Modes of Transmission |
Direct contact with hospital staff members, mother to child transmission or through
ingestion of environmental sources (fecal-oral route) but person-to-person transmission
is more prevalent.
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Signs and Symptoms |
Diarrhea (which may be watery), abdominal pain, fever, and, in more severe cases,
meningitis, brain abscesses, or pneumonia.
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Infectious Dose | Approximately 10 7 CFU/mL. |
Incubation Period |
Hours (gastrointestinal), in neonates can develop within a few hours to 42 days after
delivery.
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Prophylaxis | Antibiotics such as amoxicillin and a beta-lactamase inhibitor. |
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Vaccines | None. |
Treatment |
Aminoglycosides, chloramphenicol, imipenim/cilastatin, trimetoprim, and trimetoprim/sulfamethazole.
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Surveillance | Monitor for symptoms. |
MSU Requirements | Report any exposures |
Laboratory Acquired Infections (LAIs) | None reported.
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Sources |
Human feces, brain abscesses, cerebral fluids, soil, water, cultures, frozen stocks,
other samples described in IBC protocol.
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BMBL:
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https://www.cdc.gov/labs/BMBL.html |
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Canada PSDS:
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NIH Guidelines:
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Risk Group 2
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Agents that are associated with human disease which is rarely serious and for which preventive or therapeutic interventions are often available. |
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BSL2
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For all procedures involving suspected or known infectious specimen or cultures.
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ABSL2
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For all procedures involving infected animals
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Small
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Notify others working in the lab. Remove PPE and don new PPE. Cover area of the spill
with absorbent material and add fresh 1:10 bleach:water. Allow 20 munutes (or as directed)
of contact time. After 20 minutes, cleanup and dispose of materials.
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Large
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Mucous membrane
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Flush eyes, mouth, or nose for 5 minutes at eyewash station.
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Other Exposures
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Wash area with soap and water for 5 minutes.
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Reporting |
Immediately report incident to supervisor, complete a First Report of Injury form, and submit to Safety and Risk Management.
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Medical Follow-up
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During business hours: Bridger Occupational Health 3406 Laramie Drive. Weekdays 8am -6pm. Weekends 9am-5pm
After business hours: Bozeman Deaconess Hospital Emergency Room 915 Highland Blvd Bozeman, MT |
Disinfection |
Phenolic disinfectants, 1% sodium hypochlorite, 70% ethanol, formaldehyde, glutaraldehyde,
iodophore and paracetic acid.
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Inactivation |
Inactivated by moist heat (60 minutes at 121oC) and dry heat (2 hours at 160-170oC), UV, microwave, gamma radiation.
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Survival Outside Host |
Soil and water.
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Minimum PPE Requirements
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Lab coat, disposable gloves, safety glasses, closed toed shoes, long pants
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Additional Precautions
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Additioanl PPE may be required depending on lab specific SOPs and IBC Protocol. |