Prevalence of methicillin-resistant Staphylococcusaureus (MRSA) in organic and confinement swine operations in Iow...
Introduction to MRSA  Methicillin-resistant Staphylococcus aureus (MRSA)  Gr...
Introduction to MRSA  Not only a hospital problem anymoreReference: NEJM 2005;352:468-75NEJM 2008;358:11.Images: ...
MRSA and Swine  First identified in the Netherlands, 2005  Pig farmers: higher rate of colonization ...
MRSA and Swine Swine-associated MRSA also found in Denmark, Germany, Austria, France, Canada USA?
Swine MRSA in the USA?  Iowa: #1 pork producing state in the USA  16 million hogs  = 25% of ...
Images: http://en.wikipedia.org/wiki/Iowahttp://en.wikipedia.org/wiki/Minnesotahttp://en.wikicpedia.org/wiki/Ohiohttp://wo...
Multi-state study  18 farms per investigator  24 animals tested per farm  Nasal + pharyngeal sampling, humans...
Summary – Results in Swine No MRSA found to date on organic farms in Iowa Overall prevalence, swine: 45/408 (11%)...
Summary – Results in Humans Humans: 27/86 (31.4%) Humans working in confinement: 27/61 (44.3%) Confirmed as...
Images: http://brhssupplies.com/db1/00097/brhssupplies.com/_uimages/P1011023.JPGhttp://cache.daylife.com/imageserve/05C1f8...
Confinements as amplifiersand reservoirs 1000s of animals in small space Ventilation systems Low-tech envir...
Follow-up Environmental Sampling  PhD student in Industrial Hygiene  Anderson impact ...
Summary  MRSA is present in U.S. swine and swine workers in confinement facilities ...
Future directions More general study of MRSA in rural Iowa Population prevalence & strain types Animals other ...
Co-authors and team members Tara Smith (PI) Mike Male, Anne Dressler,Blake Hanson, Shylo Wardyn (MS s...
of 16

Prevalence of methicillin-resistant Staphylococcus aureus (MRSA) in organic and confinement swine operations in Iowa and Illinois

2009 PPT Presentation at ASM ESCMID Conference in London, UK.
Published on: Mar 4, 2016
Published in: Health & Medicine      Business      
Source: www.slideshare.net


Transcripts - Prevalence of methicillin-resistant Staphylococcus aureus (MRSA) in organic and confinement swine operations in Iowa and Illinois

  • 1. Prevalence of methicillin-resistant Staphylococcusaureus (MRSA) in organic and confinement swine operations in Iowa and Illinois Abby L. Harper, MPH University of Iowa Center for Emerging Infectious Diseases 10-09-2009
  • 2. Introduction to MRSA  Methicillin-resistant Staphylococcus aureus (MRSA)  Gram positive bacterium  Leading cause of hospital-associated infectionsImage: http://trouble.philadelphiaweekly.com/archives/MRSA220207_400x379%5B1%5D.jpg
  • 3. Introduction to MRSA  Not only a hospital problem anymoreReference: NEJM 2005;352:468-75NEJM 2008;358:11.Images: : http://www.foodpoisonblog.com/dog_cat.jpghttp://agebb.missouri.edu/commag/swine/pigs.jpghttp://www.smh.com.au/ffximage/2006/07/26/cattle26706_wideweb__470x313,0.jpg
  • 4. MRSA and Swine  First identified in the Netherlands, 2005  Pig farmers: higher rate of colonization with methicillin-susceptible S. aureus (MSSA) and MRSAReference: EID 2005;11:1965-66
  • 5. MRSA and Swine Swine-associated MRSA also found in Denmark, Germany, Austria, France, Canada USA?
  • 6. Swine MRSA in the USA?  Iowa: #1 pork producing state in the USA  16 million hogs  = 25% of hogs raised in the U.S.  = $4 billion/yearImage: http://en.wikipedia.org/wiki/Iowa
  • 7. Images: http://en.wikipedia.org/wiki/Iowahttp://en.wikipedia.org/wiki/Minnesotahttp://en.wikicpedia.org/wiki/Ohiohttp://wonkette.com/340314/ongoing-wonkette-iowa-caucus-coverage/
  • 8. Multi-state study  18 farms per investigator  24 animals tested per farm  Nasal + pharyngeal sampling, humans  17 farms tested
  • 9. Summary – Results in Swine No MRSA found to date on organic farms in Iowa Overall prevalence, swine: 45/408 (11%) Confinement swine: 45/192 (24%)
  • 10. Summary – Results in Humans Humans: 27/86 (31.4%) Humans working in confinement: 27/61 (44.3%) Confirmed as ST398; first identification in US
  • 11. Images: http://brhssupplies.com/db1/00097/brhssupplies.com/_uimages/P1011023.JPGhttp://cache.daylife.com/imageserve/05C1f8NfK3eZ5/610x.jpg
  • 12. Confinements as amplifiersand reservoirs 1000s of animals in small space Ventilation systems Low-tech environmental sampling All but 1 grew MRSA Map created by: Abby L. Harper Sources: Abby Harper Iowa Geologic Survey – DNR
  • 13. Follow-up Environmental Sampling  PhD student in Industrial Hygiene  Anderson impact sampler  CFUs / volume of air  May indicate MRSA particle sizeSource: http://www.teagasc.ie/research/reports/dairyproduction/3989/eopr-3989.asphttp://www.pacwill.ca/en/ProductsServices/6stage.htm
  • 14. Summary  MRSA is present in U.S. swine and swine workers in confinement facilities  Potential to spread to larger community  Reservoir of resistanceImage: http://cuteoverload.com/2009/04/27/pucker-up-behbeh/
  • 15. Future directions More general study of MRSA in rural Iowa Population prevalence & strain types Animals other than swine Role of antibiotics?
  • 16. Co-authors and team members Tara Smith (PI) Mike Male, Anne Dressler,Blake Hanson, Shylo Wardyn (MS students) Jennifer Kroeger (PhD student) Phil Scheibel (undergraduate) Loreen Herwaldt MD, Dan Diekema MD (UIHC) http://www.public-health.uiowa.edu/CEID/ abby-harper@uiowa.edu

Related Documents