epidemiology of antibiotic resistant infections in...
TRANSCRIPT
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Epidemiology of Antibiotic Resistant Infections in SD
One Health Meeting
March 1, 2019
Joshua Clayton, PhD, MPH
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• Renewed focus on antibiotic resistance
• Strategies to prevent and control
• Surveillance in the US and SD
Outline
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• Antimicrobial resistance
• Antibiotics, antivirals, and antimalarials are some of modern medicine’s greatest successes
• Resistance to tuberculosis drugs• 10 million ill• 1.6 million die
• In 2017, 600,000 cases resistantto rifampicin, most effective first-line drug (82% weremulti-drug resistant)
WHO Threats to Global Health 2019
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• April 2013• Purpose to increase awareness of threat antibiotic
resistance poses and encourage action
• >2 million individuals ill annually with 23,000 deaths*• $20 billion in excess direct healthcare costs• $15 billion in lost productivity
• Update anticipated in late 2019
CDC Focus
* Re-estimated annual deaths increased 7-fold
to 153,113
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• Preventing infections, preventing the spread
of resistance
• Track resistant bacteria
• Improve antibiotic prescribing/stewardship
• Develop new antibiotics and diagnostic tests
Four core actions to fight drug resistant infections
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• Limited capacity to detect and respond
• No systemic international surveillance
• Antibiotic use in healthcare and agriculture not
systematically collected
• Programs to improve antibiotic prescribing not
widely used
• Limited availability of advanced molecular
diagnostics for identification
5 Gaps in Knowledge to Address
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Gap: Limited capacity to detect and respond
CDC distributes funding to all 50 states to increase capacity for
rapid detection and response to outbreaks and emerging
resistance related to healthcare-associated infections, and
foodborne bacteria.
www.cdc.gov/ARinvestments
South Dakota: $432,756
$338,978 for Rapid Detection and Response
$93,778 for Food Safety
Solution:
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Gap: No systemic international surveillance
Solution:
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Gap: Antibiotic use in healthcare and agriculture not systematically collected
Solution:
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Gap: Antibiotic use in healthcare and agriculture not systematically collected
Solution:
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Gap: Programs to improve antibiotic prescribing not widely used
2014 2015 2016
Solution:
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Gap: Limited availability of advanced molecular diagnostics for identification
Solution:
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Surveillance for Antibiotic-Resistant Infections
• Healthcare Associated Infections Program
• Carbapenem resistant Enterobacteriaceae (CRE)
• Candida auris
• National Healthcare Safety Network
• Clostridium difficle
• Methicillin-resistant Staphylococcus aureus
• National Antimicrobial Resistance Monitoring System https://wwwn.cdc.gov/narmsnow/
• Salmonella
• Campylobacter
• Shigella
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Enterobacteriaceae
• Normal human gut flora and environmental organisms
• More than 70 species
• Enterobacter species
• Escherichia coli
• Klebsiella species
• Range of human infections: UTI, wound infections, pneumonia, bacteremia
• Important cause of healthcare-and community associated infections
• Some of the most common organisms encountered in clinical laboratories
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Carbapenem Resistant Enterobacteriaceae
Enterobacteriaceae that are:
• Resistant to one of the following carbapenems: DoripenemErtapenemMeropenem Imipenem
OR
• Documentation that the isolate possesses a Carbapenemase
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Carbapenemases
Definition: are enzymes produced by bacteria that break down Carbapenems and make them ineffective. They are often contained on mobile genetic elements that facilitate transfer of resistance among Enterobacteriaceae and other gram-negative organisms.
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Carbapenemase-producing CarbapenemResistant Enterobacteriaceae (CP-CRE)
• CP-CRE is a subset of CRE
• Ability to spread rapidly by transfer of Carbapenemase-encoding plasmid
• Resistance mechanisms include:• KPC: Klebsiella pneumoniae Carbapenemase• NDM: New Delhi metallo-β-lactamase• OXA-48: oxacillinase-48• VIM: Verona integron-encoded metallo-β-lactamase• IMP: imipenemase
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Surveillance for CP-CRE
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KPC Detected in all 50 States
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NDM Detected in 34 States (N=379)
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First NDM CP-CRE Detection in 2018
• Patient had outpatient visit on April 25• Outpatient procedure for cystoscopy on May 1• Presented to emergency dept. on May 2• Admitted directly to ICU• SD Public Health Lab resulted NDM (+) E. coli on May 4
• Urine culture (OP1)• Urine culture (OP2) • Blood culture (ED)
• SD-DOH notified on May 4• Patient placed in contact precautions same day• SD-DOH consulted with CDC and admitting hospital
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OXA-48 Detected in 27 States (N=146)
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IMP Detected in 13 States (N=36)
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VIM Detected in States (N=57)
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MCR Gene Detected in States (N=21)
MN: 1 in Apr 2017
IA: 1 in Feb 2018
MCR-1, -2, and -3 genes cause resistance to colistin, a last-line antibiotic.
As of November 2, 2018
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C. auris Clinical Cases Detected in 12 States (N=551)
As of December 31, 2018
Additional 750 colonizations identified.
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CRE Epidemiology in SD
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• CRE became reportable in 2013• C. auris became reportable in 2019
• Report CRE via:• Secure website: http://sd.gov/diseasereport• Telephone: 605-773-3737 or 800-592-1861• Fax: 605-773-5509• Mail or courier, 615 East 4th Street
Pierre, SD 57501
How to Report CRE in SD
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1 2
7
24
12
3
37
58
64
52
0
10
20
30
40
50
60
70
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018*
# C
ase
s
CRE Incidence by Year, South Dakota
* Preliminary Data
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CRE Cases by Sex and Age Group, 2018
Age Group
0 01 1
10
20 20
0
5
10
15
20
25
<1 yr 1-4 yr 5-14 yr 15-24 yr 25-39 yr 40-64 yr 65+ yr
71%
Female;
29% Male
37
15Female
Male
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CRE Organism Identified, 2018
0
2
4
6
8
10
12
14
16
58% of organisms are
found in urine specimens
35% of organisms are
carbapenemase
producing
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Goals:
• Identify if transmission
/dissemination occurring
• Identifying affected patients
• Ensuring appropriate control
measures are promptly
initiated/implemented to contain
spread
• Characterize organism/mechanism
to guide response action, patient
management, and responses
https://www.cdc.gov/hai/containment/
guidelines.html
Response to CRE Infections
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NHSN: Clostridium difficile
0
100
200
300
400
500
600
700
Community Onset (CO) Hospital Onset CO, Healthcare-associated
Isolates Reported from All Participating Hospitals
2013 2014 2015 2016 2017
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NHSN: MRSA
0
20
40
60
80
100
120
140
Community Onset (CO) Hospital Onset
Isolates Reported from All Participating Hospitals
2013 2014 2015 2016 2017
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MRSA Surveillance
0
50
100
150
200
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018*
# In
vasi
ve In
fect
ion
s
* Preliminary Data
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https://doh.sd.gov/diseases/hai/2015antibiogram.aspx
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Thank You!
Joshua Clayton, PhD, MPH
State Epidemiologist
SD Department of Health
615 East 4th Street
Pierre, SD 57501
605-773-3737
https://doh.sd.gov/diseases/hai/