Trichomoniasis

Field Perspectives

Jeremy VanBoening, DVM

Trichomoniasis Involvement

• Clinical Practice

• Nebraska Cattlemen-NCBA

• Nebraska Veterinary Medical Association

Sample Collection

Texas A&M Trich Sample Collection Video

Sample Collection ChallengesSurvey of 10 D-Labs 10-14-2013

Lab ID Do the samples need to be incubated?

Do the samples need to be put on ice when shipped?

How many samples can be pooled? Preferred collection medium?

A Yes 24hrs Yes Up to 5 tubes

B No No, dark and warm packaging Up to 5 InPouch

C No, room temp No Up to 5, but not recommended InPouch

D

You can if you want, just state on submission form if you incubated samples or not. Have to receive samples within 72hrs of collection.

If cold outside put a thawed ice pack. If hot outside put ice pack but not directly on samples

Up to 5 InPouch or tubes

E No, room temp, ship same day No No pooling InPouch

FYes or No, state on form if you did. Has to arrive at lab within 120hrs after collection.

No Up to 5 InPouch

G No cold pack Up to 5 Scraping in 5ml of Saline placed in tube.

H No No Up to 5 InPouch

I No No, room temp No pooling InPouch

J No, ship overnight Yes Up to 3 wash in red top tube with saline

Summary of PCR Related Questions

Incubation Yes= 2 No=6 Your Choice=2

Ship on Ice Yes=2 Room Temp=6 Other=2

Pooling Up to 5=7 No Pooling=2 Up to 3=1

Preferred Collection Media In Pouch=6 Saline=2 Tubes=2

Sample Collection Challenges

Restraint and Safety

Is this safe??

What Collection Method

1. preputial scraping with pipette2. preputial scraping using thrichit3. saline rinse4. swap or scraping of the penis

NO BLOOD for Either PCR or Culture

Sample Collection Challenges

Cleanliness

Field Collection Area Scissors (Disinfect or Not and with what?) Access to saline for rinsing

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

Sample Collection ChallengesProper Collection Media

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

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

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 Awareness4. Standardized Regulations