Norovirus Evonne Curran Nurse Consultant Health Protection Scotland.
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Transcript of Norovirus Evonne Curran Nurse Consultant Health Protection Scotland.
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Norovirus
Evonne CurranNurse Consultant
Health Protection Scotland
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In this presentation
• Norovirus GI infection• Why it causes us problems• Results of a survey of norovirus
experience 2009/10• Plans for 2010/11• Plans for after 2011
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Why is norovirus such a problem in hospitals?
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Immunity short lasting
50% attack rate
Low infectious
Dose (100vp)
Airborne dissemination
SICPs not enough
Odd presentations – is it a case?
Voluminous diarrhoea &
vomiting
No prodromeInfectious before
symptoms
invisible
environmental
contamination
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Martin et al. Eurosurveillance 2004 Age sex distribution norovirus
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Schulzke, et al GUT 2008
‘The diarrhoea in norovirus infection is driven by both a leak flux and a
secretory component.’
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It’s not always mild and there is an associated mortality
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•Nothing can be done•Nothing works•We just go through rituals•Should not bother
•No one comes into hospital to get an infection•By being prepared we can reduce the impact of norovirus
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Reduction in outbreaks on cruises• Changing their ways of working
– Surveillance (real time data)– Look for cases– Action when cases
•Serve buffet, laundry services, isolation, cabin with window, hand hygiene facilities, check you are doing what you are supposed to be doing, remind people what to do, non buffet but restaurant.
Firepro
of
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Fire fightin
g
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Norovirus season evaluation 2009/10• How was it for you?
Not so bad
A pain: the worst ever
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NHS Scotland Norovirus Ward Closures NHS board 1 week 29 (2009) - week 28 (2010) n = 85
0
10
20
30
40
50
60
Wk 29
Wk 30
Wk 31
Wk 32
Wk 33
Wk 34
Wk 35
Wk 36
Wk 37
Wk 38
Wk 39
Wk 40
Wk 41
Wk 42
Wk 43
Wk 44
Wk 45
Wk 46
Wk 47
Wk 48
Wk 49
Wk 50
Wk 51
Wk 52
Wk 1
Wk 2
Wk 3
Wk 4
Wk 5
Wk 6
Wk 7
Wk 8
Wk 9
Wk 10
Wk 11
Wk 12
Wk 13
Wk 14
Wk 15
Wk 16
Wk 17
Wk 18
Wk 19
Wk 20
Wk 21
Wk 22
Wk 23
Wk 24
Wk 25
Wk 26
Wk 27
Wk 28
Weeks 2009-10
NH
S S
co
tla
nd
Wa
rd C
los
ure
s
0
2
4
6
8
10
12
Scotland
Board 1
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NHS Scotland Norovirus Ward Closures & Board 4Week 29 (2009) - Week 28 (2010) n = 55
0
10
20
30
40
50
60
Weeks 2009 - 10
NH
S S
co
tla
nd
Wa
rd C
los
ure
s
0
2
4
6
8
10
12
Scotland
Board 4
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NHS Scotland Norovirus Ward Closures Board 8Week 29 (2009) - Week 28 (2010) n = 48
0
10
20
30
40
50
60
Wk 29
Wk 30
Wk 31
Wk 32
Wk 33
Wk 34
Wk 35
Wk 36
Wk 37
Wk 38
Wk 39
Wk 40
Wk 41
Wk 42
Wk 43
Wk 44
Wk 45
Wk 46
Wk 47
Wk 48
Wk 49
Wk 50
Wk 51
Wk 52
Wk 1
Wk 2
Wk 3
Wk 4
Wk 5
Wk 6
Wk 7
Wk 8
Wk 9
Wk 10
Wk 11
Wk 12
Wk 13
Wk 14
Wk 15
Wk 16
Wk 17
Wk 18
Wk 19
Wk 20
Wk 21
Wk 22
Wk 23
Wk 24
Wk 25
Wk 26
Wk 27
Wk 28
Weeks 2009 - 10
NH
S S
co
tla
nd
Wa
rd C
los
ure
s
0
2
4
6
8
10
12
Scotland
Board 8
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NHS Scotland Norovirus Ward Closures Board 9 Week 29 (2009) - Week 28 (2010) n = 47
0
10
20
30
40
50
60
Wk 29
Wk 30
Wk 31
Wk 32
Wk 33
Wk 34
Wk 35
Wk 36
Wk 37
Wk 38
Wk 39
Wk 40
Wk 41
Wk 42
Wk 43
Wk 44
Wk 45
Wk 46
Wk 47
Wk 48
Wk 49
Wk 50
Wk 51
Wk 52
Wk 1
Wk 2
Wk 3
Wk 4
Wk 5
Wk 6
Wk 7
Wk 8
Wk 9
Wk 10
Wk 11
Wk 12
Wk 13
Wk 14
Wk 15
Wk 16
Wk 17
Wk 18
Wk 19
Wk 20
Wk 21
Wk 22
Wk 23
Wk 24
Wk 25
Wk 26
Wk 27
Wk 28
Weeks 2009 - 10
NH
S S
co
tla
nd
Wa
rd C
los
ure
s
0
2
4
6
8
10
12
Scotland
Board 9
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Key comments
Lots of small fires starting at onceWhen it came it came quickly
Lots of relapses
NB The ward reopening is not the point when its no longer a problem it’s the point when its manageable
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The perfect norovirus storm
• Increased referrals by out of hours GPs
• Fewer coping services• Fewer experts to say ‘no’• Weekends – no full ICN service
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What we do
• Let everyone know its started 5/11
• Let key HCWs know its started 6/11
• Keep everyone updated once its started 8/11
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Good Practice Points
• Run workshops (doctors)• The CE puts a letter out• Note in the pay slips • Point prevalence data to bed
management• Whole hospital on alert once it starts• Attend daily bed management
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Do you remind staff to
• Check referring GP if diarrhoea or diarrhoea in care home 4/11
• Provide GPs with advice managing noro in the community 6/11
• Require docs to ask about diarrhoea when taking a history 6/11
• Avoid unnecessary moves 11/0
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Do you have • Policy to avoid unnecessary
admissions 3/11• Advice that patients with DV to
isolation 11/0• Advice to minimise CI in home 8/11• A&E algorithm 5/5• A&E procedure when Noro + MI 5/11• Contingency plans 3/11
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Do you think that recognising patients with possible norovirus symptoms as an infection risk is a problem in your hospitals ?
• Yes 8/11• Failure to recognise risk
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Biggest problem when risk recognised
• Insufficient isolation facilities• Competing priorities (A&E
targets)• Isolation requirement not passed
on
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Recognition of outbreak• Early 9/11 established 2/11 • Transfer pre closure 3/11 never• Speed of closure – excellent
‘except at weekends’
• Ward staff are quick sometimes started precautions before I get there
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‘How leaky is your bucket?’
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Are you able to continuously apply norovirus guidelines?
• Yes 7 / 11
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Other Key issues
• No data on exactly when each outbreak occurs
• Visitors
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Lots of good testing ideas
• Quarantined not closed
• Management of paired wards
• Norovirus diaries
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Lets plug the holes in the bucket!
• Contingency planning• Start date• A&E algorithm• Admission avoidance at weekends• Nursing home admission avoidance• Visitors• RCA
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Contingency planning
Pre-start of season: • There is a plan for a norovirus outbreak includes
who does what!• A contingency plan to reduce norovirus impact
and the likelihood of norovirus outbreaks getting out of control (includes comms and single ward option)
• Who at board level CPHM will help• Agreed norovirus activity locally:
– Green: single wards in single hospitals– Amber: more than single wards in single
hospitals – no pressure on routine services– Red: more than single wards closed – routine
services being stopped– Black: One or more hospital closed due to
multiple ward closures
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Season has started nationally:• Confirm Norovirus contingency plan still valid• Any changes needed to noro email groups • Visit A&E / bed management – remind of algorithm
inform of national situation• Remind of how noro presents • Remind what to ask / what to do• Powerpoint for all new staff since last season• Collective ID of the weakest links and mitigate• Confirm / remind all wards of norovirus (e)folder of
what to do• Email who to contact for noro – at weekends or after 5• Get board public comms ready – Get top level co-
operation• Liaise with board re any N home outbreaks• Weekend cover of ICN?
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Ward X and Y are closed to
due to norovirus.
Visitor restrictions apply
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Season has started locally:
• Tell everyone – including the media• Tell the visitors at the front door• All meet and greet• Daily meetings with bed-management• Daily sit rep with local norovirus
assessment• Id how did the index case cause the
outbreak – feedback• Assess all outbreaks for lessons learned• Share lessons learned locally and with
HPS
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Season over• Season debrief management and
ICT– What worked well? – What could have worked better?– What will make it work better
next time?– Share findings – Share with HPS
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If we fail to prepare, we prepare to fail
B Franklin
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Norovirus will continue to be
• A severe winter challenge to NHSScotland
• Better preparation and execution of preparation plans will reduce its impact on ourselves and our services but more importantly….
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