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Table 1 Data of all MRSA isolates found in the Elisabeth-TweeSteden hospital laboratory belonging to MLVA type MT0489-MC0022 from 2008-mid 2019 and the MRSA isolates found by screening the technicians

From: A pseudo-outbreak of MRSA due to laboratory contamination related to MRSA carriage of a laboratory staff member

Isolate ID

Patient/Technician

Sampling date

Material

Clinical MRSA infection

Carriage screening cultures

Direct PCR of sample

Subsequent screening culture

Risk factors for MRSA carriage

Suspect of contamination

MLVA type

Nose

Throat

Perineum

Msta01

Patient A (index)

Mar 2019

Synovial fluid / tissue knee

No

 -

N/P

None

Yes

MT0489-MC0022

Msta02

Technician 1

May 2019

Perineum

No

 + 

N/P

 + 

None

N/A

MT0489-MC0022

Msta03

Technician 2

May 2019

Nose, throat

No

 + 

 + 

N/P

 + 

None

N/A

MT0398-MC0398

Msta04

Patient B

Nov 2016

Nose

No

 + 

 + 

 + 

Hospital abroad

No

MT0489-MC0022

Msta05

Patient C

Jan 2017

Wound swab

Yes

 + 

 + 

 + 

N/P

 + 

None

No

MT0489-MC0022

Msta06

Patient D

Apr 2017

Throat

No

 + 

Hospital abroad

Yes

MT0489-MC0022

Msta07

Patient E

May 2017

Skin swab

Yes

 + 

 + 

 + 

N/P

Partner of patient C

No

MT0489-MC0022

Msta08

Patient F

Aug 2017

Throat

No

N/P

 + 

 + 

N/P

Roommate MRSA positive

No

MT0489-MC0022

Msta09

Patient G

Sept 2017

Nose

No

 + 

N/P

Unknown

Yes

MT0489-MC0022

Msta10

Patient H

Oct 2017

Perineum

No

 + 

N/P

Contact MRSA positive person

Yes

MT0489-MC0022

Msta11

Patient I

Dec 2017

CAPD dialysate

No

N/P

N/P

None

Yes

MT0489-MC0022

Msta12

Patient J

Mar 2018

Skin swab

No

N/P

N/P

N/P

N/P

N/P

None

ND

MT0489-MC0022

Msta13

Patient K

Apr 2018

Ascites

No

N/P

None

Yes

MT0489-MC0022

Msta14

Patient L

Feb 2019

Perineum

No

 + 

None

Yes

MT0489-MC0022

  1. CAPD continue ambulante peritoneaal dialyse; ND not determined; N/P not performed; N/A not applicable