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Published byMerryl Summers Modified over 9 years ago
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Trichomoniasis Field Perspectives Jeremy VanBoening, DVM
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Trichomoniasis Involvement Clinical Practice Nebraska Cattlemen-NCBA Nebraska Veterinary Medical Association
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Sample Collection Texas A&M Trich Sample Collection Video
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Sample Collection Challenges Survey of 10 D-Labs 10-14-2013
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Summary of PCR Related Questions IncubationYes= 2No=6Your Choice=2 Ship on IceYes=2Room Temp=6Other=2 PoolingUp to 5=7No Pooling=2Up to 3=1 Preferred Collection MediaIn Pouch=6Saline=2 Tubes=2
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Sample Collection Challenges Restraint and Safety
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Is this safe??
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What Collection Method 1.preputial scraping with pipette 2.preputial scraping using thrichit 3.saline rinse 4.swap or scraping of the penis NO BLOOD for Either PCR or Culture
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Sample Collection Challenges Cleanliness Field Collection Area Scissors (Disinfect or Not and with what?) Access to saline for rinsing
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Dirty Samples Rarely if Ever Return Positive Recent Study Hustun, etal. MSU – 20 Samples w/ bacteria injected at increasing #’s – 20 Samples clean (Only T. Foetus Added) – 0 of 20 with bacteria ever recorded as positive – 20 of 20 w/out bacteria had at least one positive recording
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Sample Collection Challenges Proper Collection Media
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Sample Preparation Depends on the D-Lab!! Collection Medium (In-Pouch, Tubes, Saline) Incubate or Not Depends on D-Lab, PCR or Culture, How should the sample be packaged? On Ice, Room Temperature, Or Depends on the Weather
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Transportation Issues Rural Access to Timely Reliable Transportation How to package and send samples? – How long can they be in transit and at what temperature? – Sensitivity and Specificity go down for both culture and PCR Hustun etal MSU
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How Do We Get Better???? Standardization 1.Adopt the Best Diagnostic Testing Available (qPCR) Using Chemical-Lysis and IAC. 2.Promote SOP’s for Sampling, Sample Prep, and Shipping 3.Increased Veterinarian/Producer Awareness 4.Standardized Regulations
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