Clonal replacement of meticillin-resistant Staphylococcus aureus during repeated outbreaks in a long-term care facility

Clonal replacement of meticillin-resistant Staphylococcus aureus during repeated outbreaks in a long-term care facility

Meticillin-resistant Staphylococcus aureus (MRSA) is common among residents of long-term care facilities (LTCFs). Analysing the spa types of 22 isolates, mostly bloodstream infections (BSI), revealed five temporally distinct clonal outbreaks occurring in one ward of our local LTCF between 2012 and 2...

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Veröffentlicht in:The Journal of hospital infection 2021-01, Vol.107, p.23-27
Hauptverfasser: Cohen, R., Afraimov, M., Finn, T., Babushkin, F., Geller, K., Alexander, H., Paikin, S.
Format: Artikel
Sprache:eng
Schlagworte:
Clonal replacement
Long-term care facility
Meticillin-resistant Staphylococcus aureus
Outbreak
spa type
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Zusammenfassung:Meticillin-resistant Staphylococcus aureus (MRSA) is common among residents of long-term care facilities (LTCFs). Analysing the spa types of 22 isolates, mostly bloodstream infections (BSI), revealed five temporally distinct clonal outbreaks occurring in one ward of our local LTCF between 2012 and 2019. Each clone caused episodes of BSI for several months until replaced by another clone. A high MRSA carriage rate of 32% among healthcare workers in this ward was documented during the investigation of the 2019 outbreak. Clonal replacement of MRSA and the role of healthcare workers in transmission are discussed.
ISSN:0195-6701
1532-2939
DOI:10.1016/j.jhin.2020.10.023