Post on 17-Jan-2016
Australia’s response and activities
Rhonda Owen
August 2009
PANDEMIC (H1N1) 2009
2
21/04/23
Australian Epicurve to 7 August
0
200
400
600
800
1000
1200
1400
Date of onset, notification or detection
Co
nfi
rmed
cas
es o
f p
and
emic
(H
1N1)
200
9
WA
VIC
TAS
SA
QLD
NT
NSW
ACT
VIC moved to modified SUSTAIN phase
AUS phase PROTECT
3
21/04/23
DELAY & CONTAIN PHASES• Amended quarantine legislation to cover the new
virus• Strengthened border measures
– Incoming flight messages, universal pratique for arriving flights, and health declaration cards,
– Passenger fever screening with thermal imaging cameras, border nurses for screening and testing of suspect cases,
– Arriving passenger information informing about symptoms that might develop later and how to report for assessment.
– Travel advisories for those intending to travel to affected areas.
• Communications – public and Health Professionals• School exclusion policy
4
21/04/23
DELAY & CONTAIN SURVEILLANCE• Enhanced surveillance
– Intensive investigations of suspect cases and their close contacts
– Voluntary case isolation and contact quarantine– Antivirals for treatment and prophylaxis
• Collected all suspected, probable and confirmed cases via web-bases data base
• Monitored ILI– Sentinel GP and ED systems– Hotline– Absenteeism
• Conducted sentinel laboratory surveillance – Proportion of respiratory tests positive for influenza– Proportion of pandemic H1N1 compared to seasonal influenza– Systematic testing of ILI patients through sentinel GPs
5
21/04/23
Australian Epicurve to 25 June 2009
0
20
40
60
80
100
120
140
160
Date of onset, notification or detection
Co
nfi
rmed
cases o
f H
1N
1 I
nfl
uen
za 0
9 WA
VIC
TAS
SA
QLD
NT
NSW
ACT
Vic moved to modif ied sustain phase, 3rd June
Move to contain
6
21/04/23
PROTECT phase • A re-focus of testing
– cases with moderate to severe disease– vulnerable groups (more susceptible to severe outcome)– outbreaks in institutional settings
• Early treatment of those identified as vulnerable – and those with moderate or severe disease
• Voluntary home isolation for those who are sick • Controlling outbreaks,
– including diagnostic testing, in institutional settings, such as special schools
• School exclusion – emphasis on excluding students with ILI from school
• Communications– Emphasising the importance of personal hygiene and social distancing
7
21/04/23
Surveillance During PROTECT• Is the Situation Changing?
– ILI from sentinel GP & ED,– Absenteeism– Laboratory surveillance – proportion positive, ratio pandemic to
seasonal
• How severe is the disease?– Hospitalisations and ICU data– Deaths
• Is the virus changing?– Stability – Resistance monitoring
• What is ahead– Analysis and Modelling to predict path and impact of pandemic
8
21/04/23
Australian Epicurve to 7 August
0
200
400
600
800
1000
1200
1400
Date of onset, notification or detection
Co
nfi
rmed
cas
es o
f p
and
emic
(H
1N1)
200
9
WA
VIC
TAS
SA
QLD
NT
NSW
ACT
VIC moved to modified SUSTAIN phase
AUS phase PROTECT
9
21/04/23
Pandemic A(H1N1) in Australia• >25,000 confirmed cases• >3,000 hospitalisations• 104 deaths• Past peak in some states, still increasing in others• ILI similar to 2007 for sentinel GPs, higher in for sentinelEDs• >80% influenza is A(H1N1) range 70%-97% • Rate of fever lower than many countries• Hospitalisation
– Highest rate in <5 years & 50-60 years– 14% of hospitalisations admitted to ICU – Indigenous 5x more likely to be hospitalised– 4% hospitalised pregnant; July: 35% hospitalised women 25-35
years• Deaths
– Most had co-morbidities; cancer, diabetes, morbid obesity– Median age 56 years (cf 83 years for seasonal)
10
21/04/23
Thanks for your attention.
More information: www.healthemergency.gov.au