|
Synonym(s):
|
Listeria;
Listeria species
|
|
Requisition Form
|
G-22-(Food);
G-23; G-21 Path-Pathogen; MSA-FORM
50-1
|
|
Test Description
|
Food
analysis method used to identify Listeria
species (including Listeria
monocytogenes) includes enrichment, rapid screen, isolation, and
biochemical testing
|
|
Pre-Approval Needed
|
Regulatory
or IDCU agent
|
|
Supplemental Information Required
|
N/A
|
|
Supplemental Form(s)
|
N/A
|
|
Performed on Specimens from (sources)
|
|
|
Sample/Specimen Type for Testing
|
- Food/milk
samples
- Environmental
swabs
|
|
Minimum Volume/Size Required |
100
grams (1/4 pound)
|
|
Storage/Preservation Prior to Shipping
|
- Environmental swabs must be collected on appropriate swabs used for environmental testing (e.g., 3M™ Quick Swabs or Spongesicle type swabs or equivalent).
- Place food sample in sterile zip-lock or whirlpack bag or other sterile plastic container.
- Store on ice.
|
|
Transport Medium
|
N/A
|
|
Specimen Labeling
|
Sample
Identification must match submission form.
|
|
Shipping and Specimen Handling Requirements
|
- Ship samples on Ice and/or Ice Packs.
- Samples must be shipped for overnight delivery.
- Ship according to Dangerous Good Regulations,
IATA, and/or CFR 49.
|
|
Method
|
- BAX® Real-Time PCR Screen
- VIDAS® ELFA Screen
- FDA Bacteriological Analytical Manual (BAM)-
Chapter 10
|
|
Turn-around Time
|
14
Days
|
|
Interferences/Limitations
|
- The
sample should represent the outer surface as well as the interior of the
food.
- Environmental
swabs must be tested within 48 hours of collection.
- Milk
Samples must be tested within 60 hours of collection
|
| Common Causes for Rejection
|
-
Not collected by a Registered Sanitarian
- Insufficient quantity
- Improperly stored
- Failure to meet shipping guidelines
|
|
Additional Information
|
N/A
|