Antimicrobial Stewardship and Judicious Use Initiatives of the USDA National Animal Health Monitoring System - Dr. Kathe E. Bjork, Veterinary Medical Officer / Biostatistician, Animal and Plant Health Inspection Service (APHIS), USDA, from the 2016 NIAA Antibiotic Symposium - Working Together For Better Solutions, November 1 - 3, 2016, Herndon, Virginia, USA. More presentations at http://www.swinecast.com/2016-niaa-symposium-antibiotic-use-working-together-for-better-solutions

1. ANTIMICROBIAL USE AND
RESISTANCE INITIATIVES OF
USDA-APHIS NAHMS
KATHE E. BJORK, DVM, MSPH, PHD
U . S . D E PA R T M E N T O F A G R I C U LT U R E
A N I M A L A N D P L A N T H E A LT H I N S P E C T I O N S E R V I C E
V E T E R I N A R Y S E R V I C ES
N AT I O N A L I N S T I T U T E F O R A N I M A L A G R I C U LT U R E
N O V E M B E R 2 , 2 0 1 6

2. Overview
USDA AMR Action Plan and U.S. National Action Plan (CARB)
Traditional data collection efforts
Proposed data collection initiatives
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3. Traditional NAHMS Commodity
Studies
General farm management and veterinary
practices
◦ Based on stakeholder needs assessment
◦ Antimicrobial use data collected at
approximately 5-year intervals
Biological sampling
◦ Serosurveys
◦ Bacterial isolation, antimicrobial
susceptibility
Rotate 5-10 years, depending on species
◦ Cross-sectional
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4. 4

5. Annual Antimicrobial
Use Surveys
Request data on previous year’s antimicrobial use,
focusing on feed and water uses
Stewardship
Administered under CIPSEA protection, so
confidentiality of respondents is assured
USDA has no regulatory authority over use of
antimicrobials
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6. Annual Antimicrobial
Use Surveys
Initial contact with operation via NASS
◦ Voluntary participant information provided to VS
APHIS-VS collects and controls data
◦ VS field veterinarian visits operation/site
◦ Works with producers to collect appropriate data
◦ Personal information removed
◦ NAHMS: data entry, validation, analysis, reporting
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7. Longitudinal Antimicrobial
Use and Resistance Studies
oRepeated data collection on farms over longer period can help measure
effectiveness of policies and interventions
oCoupled with other data, such as those from slaughter plants and retail meat,
can evaluate microbial and gene flow in food production system and the
influence of on-farm antimicrobial use on bacterial susceptibility
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