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Table 2 Reason for reporting and severity of outbreaks reported to the SO-ZI/AMR (2012–2021), by healthcare setting and year

From: Description of a nationwide structure for monitoring nosocomial outbreaks of (highly resistant) microorganisms in the Netherlands: characteristics of outbreaks in 2012–2021

 

2012a

2013

2014

2015

2016

2017

2018

2019

2020

2021

Total

Hospitals

Total number of outbreaks

20

37

51

53

40

38

34

39

21

20

353

Number of outbreaks with request for support

3

8

4

4

0

0

0

0

1

1

21

Reason for reporting (n (%))

Threat of ward closure

14 (70)

26 (70)

41 (80)

45 (85)

32 (80)

29 (76)

26 (76)

24 (62)

19 (90)

15 (75)

271 (77)

Ongoing transmission

5 (25)

8 (22)

8 (16)

4 (8)

3 (8)

4 (11)

2 (6)

2 (5)

2 (10)

2 (10)

40 (11)

Combination of both

0 (0)

0 (0)

0 (0)

0 (0)

4 (10)

1 (3)

2 (6)

2 (5)

0 (0)

1 (5)

10 (3)

Unknown

1 (5)

3 (8)

2 (4)

4 (8)

1 (3)

4 (11)

4 (12)

11 (28)

0 (0)

2 (10)

32 (9)

Highest level severity phaseb(n (%))

Phase 1

12 (60)

28 (76)

44 (86)

49 (92)

36 (90)

36 (95)

30 (88)

37 (95)

21 (100)

16 (80)

309 (88)

Phase 2

7 (35)

4 (11)

7 (14)

2 (4)

3 (8)

2 (5)

1 (3)

2 (5)

0 (0)

4 (20)

32 (9)

Phase 3

1 (5)

5 (14)

0 (0)

2 (4)

1 (3)

0 (0)

2 (6)

0 (0)

0 (0)

0 (0)

11 (3)

Phase 4

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

1 (3)

0 (0)

0 (0)

0 (0)

1 (0)

Long-term care facilities

Total number of outbreaks

0

2

4

8

10

22

24

20

13

7

110

Number of outbreaks with request for support

0

0

0

0

2

2

1

0

0

0

5

Reason for reporting (n (%))

Threat of ward closure

0 (0)

1 (50)

3 (75)

8 (100)

7 (70)

6 (27)

5 (21)

4 (20)

4 (31)

4 (57)

42 (38)

Ongoing transmission

0 (0)

1 (50)

1 (25)

0 (0)

0 (0)

1 (5)

1 (4)

0 (0)

1 (8)

0 (0)

5 (5)

Combination of both

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

2 (9)

1 (4)

1 (5)

0 (0)

0 (0)

4 (4)

HRMO in healthcare facility other than hospitalc

0 (0)

0 (0)

0 (0)

0 (0)

3 (30)

13 (59)

15 (63)

14 (70)

8 (62)

3 (43)

56 (51)

Unknown

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

2 (8)

1 (5)

0 (0)

0 (0)

3 (3)

Highest level severity phaseb(n (%))

Phase 1

0 (0)

2 (100)

4 (100)

8 (100)

9 (90)

18 (82)

22 (92)

20 (100)

13 (100)

7 (100)

103 (94)

Phase 2

0 (0)

0 (0)

0 (0)

0 (0)

1 (10)

3 (14)

2 (8)

0 (0)

0 (0)

0 (0)

6 (5)

Phase 3

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

1 (5)

0 (0)

0 (0)

0 (0)

0 (0)

1 (1)

  1. SO-ZI/AMR: Healthcare-associated Infection and AntiMicrobial Resistance Monitoring Group.
  2. a The SO-ZI/AMR was initiated in April 2012
  3. b For definitions of outbreak phases, see Table 1
  4. c To stimulate long-term care facilities to report outbreaks and address them, they can apply for reimbursement of costs related to control measurements since 2018. At that time, this category was added as a reason for reporting, despite the fact that the other reasons may still apply