Volume 27, Number 1—January 2021
Dispatch
Listeriosis Caused by Persistence of Listeria monocytogenes Serotype 4b Sequence Type 6 in Cheese Production Environment
Magdalena Nüesch-Inderbinen
, Guido V. Bloemberg, Andrea Müller, Marc J.A. Stevens, Nicole Cernela, Beat Kollöffel, and Roger Stephan
, Guido V. Bloemberg, Andrea Müller, Marc J.A. Stevens, Nicole Cernela, Beat Kollöffel, and Roger Stephan
Table
Listeria monocytogenes 4b sequence type 6 cluster type 7448 isolates associated with listeriosis outbreak, Switzerland, 2018–2020*
| Isolate ID | Date of isolation | Origin | Source | Patient age, y/sex | BioSample accession no. |
|---|---|---|---|---|---|
| N18–0388 | 2018 Mar 6 | Human | Blood | 82/F | SAMN15325567 |
| N18–0707 | 2018 Apr 30 | Human | Ascitic fluid | 79/F | SAMN15325568 |
| N18–0719 | 2018 May 2 | Human | Blood | 59/F | SAMN15325569 |
| N18–1073 | 2018 Jun 26 | Human | Blood | <1/F | SAMN15325570 |
| N18–1074 | 2018 Jun 26 | Human | Blood | 88/F | SAMN15325571 |
| N18–1075 | 2018 Jun 26 | Human | Maternal placenta tissue | 38/F | SAMN15325572 |
| N18–1093 | 2018 Jun 27 | Human | Blood | 82/M | SAMN15325573 |
| N18–1123 | 2018 Jul 3 | Human | Blood | 81/M | SAMN15325574 |
| N18–1124 | 2018 Jul 3 | Human | Blood | 99/M | SAMN15325575 |
| N18–1339 | 2018 Jul 24 | Human | Blood | 82/F | SAMN15325576 |
| N18–1398 | 2018 Jul 31 | Human | Blood | 48/M | SAMN15325577 |
| N18–1399 | 2018 Jul 31 | Human | Blood | 14/M | SAMN15325578 |
| N20–0137 | 2020 Jan 22 | Human | Blood | 77/M | SAMN15325579 |
| N20–0245 | 2020 Feb 7 | Human | Blood | 73/M | SAMN15325580 |
| N20–0505 | 2020 Mar 17 | Human | Blood | 73/M | SAMN15325581 |
| N20–0571 | 2020 Mar 30 | Human | Blood | 85/M | SAMN15325582 |
| N20–0605 | 2020 Apr 6 | Human | Blood | 73/M | SAMN15325583 |
| N20–0626 | 2020 Apr 15 | Human | Blood | 85/M | SAMN15325584 |
| N20–0655 | 2020 Apr 20 | Human | Blood | 66/F | SAMN15325585 |
| N20–0656 | 2020 Apr 20 | Human | Blood | 81/F | SAMN15325586 |
| N20–0662 | 2020 Apr 22 | Human | Blood | 86/F | SAMN15325587 |
| N20–0664 | 2020 Apr 22 | Human | Blood | 69/F | SAMN15325588 |
| N20–0674 | 2020 Apr 23 | Human | Blood | 84/F | SAMN15325589 |
| N20–689 | 2020 Apr 29 | Human | Blood | 63/F | SAMN15325590 |
| N20–725 | 2020 May 4 | Human | Blood | 81/M | SAMN15325592 |
| N20–737 | 2020 May 5 | Human | Blood | 86/M | SAMN15325593 |
| N20–742 | 2020 May 6 | Human | Blood | 78/F | SAMN15325594 |
| N20–743 | 2020 May 6 | Human | Blood | 37/M | SAMN15325595 |
| N20–753 | 2020 May 8 | Human | Blood | 75/M | SAMN15325596 |
| N20–754 | 2020 May 8 | Human | Blood | 85/F | SAMN15325597 |
| N20–771 | 2020 May 11 | Human | Blood | 95/F | SAMN15325598 |
| N20–778 | 2020 May 12 | Human | Blood | 95/F | SAMN15325599 |
| N20–851 | 2020 May 22 | Human | Perianal abscess | 85/M | SAMN15325600 |
| N20–861 | 2020 May 26 | Human | Blood | 83/F | SAMN15325601 |
| N20–639 | 2020 Apr 30 | Food | Cheese sample | NA/NA | SAMN15325591 |
| N20–757 | 2020 May 3 | Environment | Scrub sponge | NA/NA | SAMN15375881 |
| N20–759 | 2020 May 3 | Environment | Drainage channel | NA/NA | SAMN15375882 |
| N20–761 | 2020 May 3 | Environment | Door handle | NA/NA | SAMN15375884 |
| N20–764 | 2020 May 3 | Environment | Cellar floor | NA/NA | SAMN15375885 |
| N20–767 | 2020 May 3 | Environment | Ripening cellar floor | NA/NA | SAMN15375883 |
*ID, identification; NA, not applicable.
Page created: September 23, 2020
Page updated: December 21, 2020
Page reviewed: December 21, 2020
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