Abstract
Chromobacterium violaceum is sensitive to temperature and the infection is usually confined to tropical or subtropical regions. Since Japan has a warm climate, C. violaceum has been scarcely isolated from clinical specimens. With global warming, however, the geographical distribution of C. violaceum infection is likely to change. We report two cases of C. violaceum nosocomial pneumonia that occurred at an intensive care center in Japan. C. violaceum was first detected from a patient in the same center as a pathogenic organism of pneumonia. Later, the organism was isolated from sputum and a ventilator circuit tube of another patient in the center. The two patients were admitted to the center in nearby beds for several days. All of the pathogens were confirmed to be C. violaceum by the nucleic acid sequence of the 16S rRNA gene and were proven to be genetically identical organisms by pulsed field gel electrophoresis. Both patients were managed with well-humidified and heated oxygen using a venturi mask and ventilator to promote excretion of sputum. It was thought that the medical respiratory care devices that provide a humid and warm environment, an optimal condition for proliferation of C. violaceum, can contribute to C. violaceum infection in a hospital environment.
| Original language | English |
|---|---|
| Pages (from-to) | 139-142 |
| Number of pages | 4 |
| Journal | Journal of Infection and Chemotherapy |
| Volume | 20 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2014 |
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Keywords
- Chromobacterium violaceum infection
- Global warming
- Intensive care unit
- Nosocomial infection
- Respiratory care device
ASJC Scopus subject areas
- Microbiology (medical)
- Pharmacology (medical)
- Infectious Diseases
Cite this
Chromobacterium violaceum nosocomial pneumonia in two Japanese patients at an intensive care unit. / Hagiya, Hideharu; Murase, Tomoko; Suzuki, Masato; Shibayama, Keigo; Kokumai, Yumi; Watanabe, Naoto; Maki, Miyako; Otsuka, Fumio.
In: Journal of Infection and Chemotherapy, Vol. 20, No. 2, 2014, p. 139-142.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Chromobacterium violaceum nosocomial pneumonia in two Japanese patients at an intensive care unit
AU - Hagiya, Hideharu
AU - Murase, Tomoko
AU - Suzuki, Masato
AU - Shibayama, Keigo
AU - Kokumai, Yumi
AU - Watanabe, Naoto
AU - Maki, Miyako
AU - Otsuka, Fumio
PY - 2014
Y1 - 2014
N2 - Chromobacterium violaceum is sensitive to temperature and the infection is usually confined to tropical or subtropical regions. Since Japan has a warm climate, C. violaceum has been scarcely isolated from clinical specimens. With global warming, however, the geographical distribution of C. violaceum infection is likely to change. We report two cases of C. violaceum nosocomial pneumonia that occurred at an intensive care center in Japan. C. violaceum was first detected from a patient in the same center as a pathogenic organism of pneumonia. Later, the organism was isolated from sputum and a ventilator circuit tube of another patient in the center. The two patients were admitted to the center in nearby beds for several days. All of the pathogens were confirmed to be C. violaceum by the nucleic acid sequence of the 16S rRNA gene and were proven to be genetically identical organisms by pulsed field gel electrophoresis. Both patients were managed with well-humidified and heated oxygen using a venturi mask and ventilator to promote excretion of sputum. It was thought that the medical respiratory care devices that provide a humid and warm environment, an optimal condition for proliferation of C. violaceum, can contribute to C. violaceum infection in a hospital environment.
AB - Chromobacterium violaceum is sensitive to temperature and the infection is usually confined to tropical or subtropical regions. Since Japan has a warm climate, C. violaceum has been scarcely isolated from clinical specimens. With global warming, however, the geographical distribution of C. violaceum infection is likely to change. We report two cases of C. violaceum nosocomial pneumonia that occurred at an intensive care center in Japan. C. violaceum was first detected from a patient in the same center as a pathogenic organism of pneumonia. Later, the organism was isolated from sputum and a ventilator circuit tube of another patient in the center. The two patients were admitted to the center in nearby beds for several days. All of the pathogens were confirmed to be C. violaceum by the nucleic acid sequence of the 16S rRNA gene and were proven to be genetically identical organisms by pulsed field gel electrophoresis. Both patients were managed with well-humidified and heated oxygen using a venturi mask and ventilator to promote excretion of sputum. It was thought that the medical respiratory care devices that provide a humid and warm environment, an optimal condition for proliferation of C. violaceum, can contribute to C. violaceum infection in a hospital environment.
KW - Chromobacterium violaceum infection
KW - Global warming
KW - Intensive care unit
KW - Nosocomial infection
KW - Respiratory care device
UR - http://www.scopus.com/inward/record.url?scp=84903617847&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84903617847&partnerID=8YFLogxK
U2 - 10.1016/j.jiac.2013.10.001
DO - 10.1016/j.jiac.2013.10.001
M3 - Article
C2 - 24548644
AN - SCOPUS:84903617847
VL - 20
SP - 139
EP - 142
JO - Journal of Infection and Chemotherapy
JF - Journal of Infection and Chemotherapy
SN - 1341-321X
IS - 2
ER -