New World Screwworm Testing Form and Submission Guidelines Download Link

Supplies

The following is needed for NWS collection:

• Gloves
• 70% alcohol (ethanol or isopryl)
• Forceps
• Screw cap vial or container
• Tape to seal container
• Plastic bag with a zipper closure
• Parasite Submission Form VS 5-38

Collection Procedures

• Using forceps, gently remove larvae of different sizes from several sites within the open wound.
  • Ensure samples are removed from the deepest part of the wound, secondary myiasis may be present.
• Place the larvae in the vial or container and ensure it is completely submerged in alcohol. Seal the container and place it in the plastic bag for shipment.

Submitting Samples

• The USDA needs to be informed prior to submitting samples to the National Veterinary Services Laboratory (NVSL).
• Fill out the Parasite Submission Form VS 5-38 with as much information as possible.
• Contact a TAHC region office or the veterinarian on call, 1-800-550-8242, to receive a FAD# and shipping label.
  • Include the provided FAD# on the Parasite Submission Form in block 31: History or Additional Information.
• Email NVSL, [email protected], with the subject line: Suspected Screwworm.
• Secure samples in proper shipping container and submit to NVSL.