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Biosecurity … in the “real world”? … can you say “A-RITS”

Biosecurity … in the “real world”? … can you say “A-RITS”. http://gpvec.unl.edu. Best Way To Deal With Disease. Biosecurity Basics for Livestock Operations.

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Biosecurity … in the “real world”? … can you say “A-RITS”

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  1. Biosecurity… in the “real world”? … can you say “A-RITS” http://gpvec.unl.edu

  2. Best Way To Deal With Disease

  3. Biosecurity Basics for Livestock Operations • Biosecurity is a practice designed to prevent the spread of disease by minimizing the movement of biologic organisms (viruses, bacteria, rodents, etc.) onto and within an operation. • Biosecurity can be very difficult to maintain because the of the very complex interrelationships between management, biologic organisms and biosecurity. • Biocontainment maybe the only practical control for many diseases. • While developing and maintaining biosecurity is difficult it is the cheapest, most effective means of disease control available and no disease prevention program will work without it.

  4. Diseases can be spread from operation to operation OR within an operation by: • FOMITES … • Not a parasite controlled by “Elector” • Animals • incubating disease, recovered carriers • Dead animals not properly disposed • Wildlife (coyotes, rodents, birds … flies) • Vehicles, equipment, clothing/shoes … contaminated with disease organisms • Feedstuffs contamination • feces/dead animals • Manure handling - aerosolized manure & dust • Impure water (surface drainage water, etc)

  5. Health - Disease Complex Interactions

  6. Understand What You Up Against • How are cattle (the ultimate recyclers) raised? • approximately 100M in U.S. … • 50% from herds less than 30 … • 90% beef & 10% dairy … of the beef … • 2 years from birth to food supply • 40% in breeding herds • 30% grazing • 30% harvested each year • ALL in OPEN AIR ENVIROMENT !!! … wildlife • deer, coyotes, raccoons, birds, rodents, insects, …

  7. Biosecurity Major Components: Assess – Resist Isolate Traffic Sanitation RITS are a set of hurdles

  8. Assessment … its all about HACCP(Hazard Analysis, Critical Control Points)

  9. Activity  Outcome Targets … PRCE … Justify Verify Monitor Secret to HACCP

  10. Applying HACCP to BiosecurityHazard Analysis, Critical Control Points (HACCP): Seven Specific Steps 1. Identify potential biological hazards (BH) - ranked / rated by significance to operation 2. Identify critical control points (CCP) - evaluate basis / evidence for CCP 3. Establish critical limits for CCPs 4. Establish CCP monitor procedure 5. Establish corrective actions 6. Establish record keeping procedure 7. Establish verification procedures Go to CCP Questions

  11. Critical Control Points To Identify CCP … ask these questions Q1: Do preventive measures exist for BH? … if YES go to Q2, if NO, is required of safety if NO = not CCP, if YES modify process Q2: Does this step PRCE(prevent/reduce/control/eliminate) the likely occurrence of BH to an acceptable level? if YES = CCP, if NO go to Q3 Q3: Could unacceptable BH contamination occur? if YES go to Q4, if NO = not CCP = stop Q4: Will subsequent step eliminate the BH? if YES = not CCP, if NO = CCP Go HACCP Secret

  12. Biosecurity Risk … Evaluate • Accessibility • Personnel training • Reservoir(s) • Isolation • Traffic Flow • Sanitation • Pest Control

  13. “RITS” • Resistance, Isolation, Traffic Control, & Sanitation. • ??? Evidence Based ??? • Maximize resistance • General  Specific • Isolate from outside and within • Control exposure & potential spread • Clean, Clean & Clean

  14. Sanitation … Disinfectants • Sanitation should stress CLEAN … not the use of disinfectants • Selection and use of Disinfectants • Understand the target pathogen • Understand the organic load • Understand the disinfectant properties • Understand disinfectant have been documented to relate to antibiotic resistance

  15. Disinfectant Classification • Hypochlorites: • Iodine and ionophore disinfectants: • Chlorhexidine: • Alcohols: • Oxidizing Agents: • Phenolic disinfectants: • Quaternary Ammonium Compounds: • Aldehydes:

  16. All About Disinfectants Disinfectant Properties .

  17. Disinfectant … Virus Targets Go to End

  18. Risk Training Isolation Traffic Control Sanitation Action Trigger Rapid Response Comments Biosecurity – Specific Disease Control & Identification EXAMPLES … BS-Man-07-SpecficDisCont&ID.doc

  19. Salmonella BSE FMD BVD-PI Leptospirosis Johne’s Leucosis Anaplasmosis Viral calf scours TB - Bangs Biosecurity Principles Diseases to Consider: Rank significance to different production systems Threat type: EXTERNAL, INTERNAL, MANAGEMENT

  20. Cryptosporidiosis Coccidiosis, Sarcocystis Neospora, Toxoplasma Trichomoniasis, Vibrio Common Inherent Diseases IBR, BVD, PI3, BRSV, Pasteurella, Mycoplasma, & Clostridia Staph mastitis??? Mastitis (others???) Chronic Wasting Disease (CWD) Noxious weed Specific Bioterrorism Issues: Biosecurity Other Diseases or Situations Rank significance to different production systems Threat type: EXTERNAL, INTERNAL, MANAGEMENT

  21. Risk Management - PRCE • Prevent, Reduce, Control, Eliminate • Resistance … General  Specific • SOURCE, EXPOSURE … Additions … • Isolate, test, monitor, re-test … • Traffic Control … • Sanitation … • Justify  Verify  Monitor • Is there evidence for control? • Is it getting done? • Is it working? (surveillance testing)

  22. Biosecurity-Security … “what if” Emergency Action Plan • Assessing the situation: • Is it a disease concern? • Is it a contaminate concern? • Is it an intruder concern? • NOTIFY THE PROPER PERSONNEL • IMPLEMENT QUICK RESPONSE PLAN • SANITATION … SECURITY Go to End

  23. Bottom Line • Start … somewhere, but start • Educate ... • Basic understanding of targeted diseases • Know what is “unusual” • Secure the operation • Have a “what if” plan

  24. Updates available at: Http://gpvec.unl.edu => Biosecurity

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