This document outlines the plan implemented by the Yucatan state pork industry to prevent the entry of Porcine Epidemic Diarrhea virus (PEDv), which had already spread to 17 Mexican states by 2015. The key aspects of the plan were: 1) Strict transport biosecurity including truck washing and border inspections. 2) Strong internal biosecurity protocols on farms, for transportation within Yucatan, and at processing plants. 3) Active surveillance including monthly sampling and audits of biosecurity practices. 4) Extensive outreach and training to ensure proper implementation of biosecurity protocols. This multi-pronged approach successfully kept Yucatan as the only major pork producing state free of PEDv.

1. How to keep a region (Yucatan State) free of
PEDV in a PEDV-positive country (Mexico)
September, 2015
E. Ramírez, H. Garcia, R. Orozco, O. Lizama, A. Alfonso, C. Freixes
2015 Allen D. Leman Swine Conference

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1 BACKGROUND OF PORK PRODUCTION IN MEXICO
Sonora
Jalisco
Guanajuato
Veracruz
Puebla
Yucatán
= > 100,000 vientres
= 40,000 -100,000 vientres
= 5,000-40,000 vientres
= < 5,000 vientres
Source: Porcimex-SAGARPA. Abr-2015
Sows inventory distribution in Mexico
≈ 800,000 sows
= > 100,000 sows
= 40,000 - 100,000 sows
= 5,000 – 40,000 sows
= < 5,000 sows
19.5%
18.7%
12.1%9.6%
8.7%
8.5%
3.3%
2.1%
1.9% 15.6%
Pork Production Distribution by
State in México
Jalisco
Sonora
Puebla
Yucatan
Veracruz
Guanajuato
Michoacan
Chiapas
Oaxaca
Others
JAL
SON
PUB
VER
GTO
YUC

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Pork production in Yucatan
• Pork production is growing
• Keken represents 80% of the state total
production.
• Locally produced pigs are sold in other
states
• Export to Japan, South Korea, USA &
Canada (> 30% total export from
México).
• Geographic advantages (surrounded by
non producing pig states – tropical
weather).
• Medium to low virulent PRRS strains
• Only boars and gilts (breeding stock) are
allowed to enter the state
2 BACKGROUND OF PORK PRODUCTION IN YUCATAN
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
2011 2012 2013 2014 2015(*) 2016(*)
Sow inventory Yucatán 2011-2016

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Grupo Porcícola Mexicano– Kekén
2 BACKGROUND OF PORK PRODUCTION IN YUCATAN

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PED SITUATION IN MEXICO
IN 10 MONTHS PEDv SPREAD TO 17 STATES
• First outbreak in June 2013
(Michoacan).
MEXICO SITUATION
43

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• Yucatan is the only pork
producing state that is PEDv
free.
MEXICO SITUATION (2015)
PED SITUATION IN MEXICO4

7. 5
5.1 Risk factors PIGS FROM POSITIVE STATES (PUE
& VER) ARE BEING MOVED TO
YUCATAN NEIGHBOURING STATES
VER TAB CAM
PUE
YUC
PLAN TO KEEP YUCATAN PED FREE

8. 5
5.1 Risk factors TRUCKS RETURNING TO YUCATAN
AFTER DELIVERING LIVE PIGS TO
PEDV-POSITIVE STATES
VER TAB
CAM
PUE
YUC
PLAN TO KEEP YUCATAN PED FREE

9. 1.3. Preventive actions
Focus on five points:
I. Transport biosecurity.
II. State border inspection of incoming trucks.
III. Internal biosecurity (Farms- Transport –
Slaughter plant - Feed mill).
IV. Audits and active surveillance
V. Trainings and outreach.
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1
2
3
4
5
5 PLAN TO KEEP YUCATAN PED FREE

10. I. Transport biosecurity
• Trucks for live pigs sales outside of Yucatán:
– Double washing and disinfection before entering
Yucatan
– Staff training with Keken support (outsourcing border
truck wash)
• Audits!
10
5 PLAN TO KEEP YUCATAN PED FREE

11. I. Transport biosecurity
• Pig truck improvements
– Easier to clean and disinfect.
– Replaced wood and plastic floors by aluminum.
• Constructed and remodeled truck wash in several routes at the Yucatán and other states
11
5 PLAN TO KEEP YUCATAN PED FREE

12. II. Border Truck Inspection
• THE MAIN GOAL IS TO AVOID DIRTY TRUCK ENTRY
• Considered as the most important preventive measure at the regional level.
• Inspection point: Focused on border state.
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5 PLAN TO KEEP YUCATAN PED FREE

13. II. Border Truck Inspection
• Inspection of all pigs trucks that enter the state:
– Hiring and training inspectors to check units
– Standard to enter to the state is "ZERO TOLERANCE
IN PRESENCE OF FECES IN THE TRUCKS".
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5 PLAN TO KEEP YUCATAN PED FREE

14. II. Border Truck Inspection
• Inspection result:
– APPROVED: Continue to disinfection (drive-thru
sprayer) prior to state entry.
– REJECTED: Pay a penalty-fee and must go to
wash and disinfect in the border truck wash.
• Building truck-wash at the border (SPAY).
(May 2014)
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5 PLAN TO KEEP YUCATAN PED FREE

15. 15
Standard is "ZERO TOLERANCE IN PRESENCE
OF FECES AT THE UNITS"

16. Standard is "ZERO TOLERANCE IN PRESENCE
OF FECES AT THE UNITS"

17. II. Border Truck inspection
5
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
52 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34
2013 2014 2015
%Trucksrejected
Week / Year
% Rejected pigs trucks at the Campeche-Yucatán state border
(2,139 trucks inspected)
PLAN TO KEEP YUCATAN PED FREE

18. II. Border Truck Inspection
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Maxcanu border
SPAY truck wash
Outsourcing truck wash
5 PLAN TO KEEP YUCATAN PED FREE

19. 5
III. Internal Biosecurity
TRUCK-WASH FARMS:
• Very strict truck washing/desinfection
protocols between farms within Yucatan.
• Exclusive Truck wash by production flow.
• Hot water and foam in sanitization procedure.
• Drying under the sun (It's hard in Yucatan!).
• Truck-wash Audit Process:
– Outsourcing and Own
• Policy health about pigs transportation
PLAN TO KEEP YUCATAN PED FREE

20. • Truck wash facilities:
– GPM-1 flow
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Wash area Drying Area
5 PLAN TO KEEP YUCATAN PED FREE

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5
• Truck wash facilities:
– GPM-2 flow
PLAN TO KEEP YUCATAN PED FREE

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5
• Truck wash facilities:
– GPM-3 flow
PLAN TO KEEP YUCATAN FREE OF PED

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5
III. Internal Biosecurity
FARMS:
• PED sampling boars at reception in quarantine (previous
origin sampling).
• Warning posters in farms
• Transfer farm for cull sows and cull pig for sale.
• Action plans in case of outbreaks.
• Shoe locker before the access to the farm.
• Replacing wood surface ramps.
• Biosecurity Audits
• Shower in/Shower out in all farms.
• Perfect conditions for perimeter fences
• Pest control
PLAN TO KEEP YUCATAN FREE OF PED

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5
III. Internal Biosecurity
PLAN TO KEEP YUCATAN FREE OF PED

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25
5
Desinfection room
Locker for shoes
Perimetral fence
Shower in/shower out
III. Internal Biosecurity
PLAN TO KEEP YUCATAN FREE OF PED

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5
III. Internal Biosecurity
• Truck inspection before loading pigs
PLAN TO KEEP YUCATAN FREE OF PED

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III. Internal Biosecurity
FARMS:
• Biosecurity Audits
5 PLAN TO KEEP YUCATAN FREE OF PED

28. 5
III. Internal Biosecurity
FEED MILL:
• Elimination porcine plasma.
• All vehicles disinfected through a drive-thru sprayer
PLAN TO KEEP YUCATAN FREE OF PED

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5
February-2014 June-2014
III. Internal Biosecurity
SLAUGHTER PLANT:
• Truck wash facillity Improvement.
• Hot / Cold pressure washer.
• Light improvements
• Training, standardization and verification W & D process.
• Entry and Exit totally segregated.
October-2014
PLAN TO KEEP YUCATAN FREE OF PED

30. • Internal Audits:
• Biosecurity Sites 1.
• Truck wash center (Own - Outsourcing)
• External audits
• Pipestone – Apr. 2014
• Live pig markets and local government
slaughter plant surveillance (RT-PCR)
• PED samples every month.
• Goverment surveillance in the Peninsula:
• December-2014: more than 3000 samples were tested
in the three states of the peninsula (technified and
backyard farms). All were PCR NEGATIVE.
IV. Audits and Active Surveillance
5 PLAN TO KEEP YUCATAN FREE OF PED

31. • Internal training (production, slaughter plant, logistic and
commercial staff).
• Producers of the region.
• Goverment authorities.
• Continuous updating – Consulting support
V. Outreach and Training
5 PLAN TO KEEP YUCATAN FREE OF PED
Joel Nerem-Pipestone Montse Torremorell –
U. Minensota
Laura Batista –
International Consultant
Cesar Corzo – PIC Albert Rovira – VDL UM.
Diagnostic Support

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Training and outreach has been an important part of
program success!
Foto de
capacitaciones
recientes

33. Take home message
• PED has come to give us a lesson, that biosecurity measures never seem to
be robust enough to prevent the entry of new diseases.
• PED has come to rethink and question what we are still exposed in the swine
industry for the entry of new high-impact diseases.
... And what’s next? FMD, ASF, CSF, SIV?
• The basic principles of biosecurity are the same and known by all! But ...
The diseases are changing, barriers are thinning, distances are getting
shorter ... Something different must do !!
Agile, timely, mandatory and auditable actions must be implemented jointly
by producers, veterinarians and authorities to protect our industry at all
times.

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Muchas Gracias!