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Table 5 Season week of first detected breakpoint with 95% confidence intervals, by norovirus season, based on a 4-week rolling average

From: Can cases and outbreaks of norovirus in children provide an early warning of seasonal norovirus infection: an analysis of nine seasons of surveillance data in England UK

Surveillance dataset

2010/11

2011/12

2012/13

2013/14

2014/15

2015/16

2016/17

2017/18

2018/19

School outbreaks

13 (8–14)

27 (23–28)

13 (10–14)

-

13 (11–15)

-

18 (11–19)

12 (9–13)

13 (4–16)

Care home outbreaks

21 (20–22)

24 (23–25)

16 (15–17)

20 (19–21)

15 (14–16)

30 (28–31)

18 (17–19)

19 (17–20)

20 (19–21)

Hospital outbreaks

22 (21–23)

23 (22–24)

17 (15–18)

22 (21–23)

21 (20–22)

21 (20–24)

17 (15–18)

20 (18–21)

17 (13–20)

Laboratory norovirus reports

24 (23–25)

24 (23–25)

17 (15–18)

22 (21–24)

18 (16–19)

18 (16–22)

17 (15–18)

20 (19–21)

20 (17–22)

GP consultations for IID

NA

NA

40 (38–41)

21 (20–22)

14 (11–15)

29 (24–33)

13 (11–16)

-

11 (9–12)

NHS 111 calls for diarrhoea

NA

NA

NA

NA

16 (11–17)

33 (30–34)

16 (15–17)

21 (17–22)

24 (22–25)

NHS 111 calls for vomiting

NA

NA

NA

NA

15 (13–16)

17 (16–18)

15 (14–16)

19 (18–20)

20 (19–21)