Vibrio parahaemolyticus Testing for Oysters
Submission guidelines for oyster samples for Vibrio parahaemolyticus testing.
Submit 16-20 live, intact, clean oysters per sampling location.
- The outside of the shells should be clean - in ready-to-sell condition.
- Care must be taken to avoid damaging the shell and cross-contaminating samples.
- Each sample must be submitted in a clean, sealed plastic bag to prevent contamination and/or co-mingling of different samples.
Label each sample with the following information:
- lease number
- specific location within the lease
- depuration tank
- date and time of sample collection
- date and time of harvest (if appropriate)
- ambient temperature of the water at the exact location where the oysters were collected
- name of person who collected samples
- Samples must be cooled immediately after collection by placing samples into a clean ice chest with enough blue ice to chill and hold samples at 4° to 10° C.
- Direct contact with wet ice should be avoided.
- Maintain samples at 2° to 10° C during storage and transport. Use of cool packs is recommended - do not use wet ice.
- Oysters must be received at the lab within 22 hours of harvest. Samples must be received at lab by 3:00 p.m. to ensure same day testing.
Make pre-arrangements for testing with laboratory: (707) 565-4711
Samples accepted: Monday - Thursday, 8:00 a.m. - 3:00 p.m.*
* Exceptions may apply on and/or around observed holidays - call for details.
Sonoma County Public Health Laboratory
3313 Chanate Road
Santa Rosa, CA 95404
Pricing and Results
Results typically available the following day by 4:00 p.m. or earlier.
Reference: 2013 Vibriparahaemolyticus Control Plan for Oysters in Commercial Shellfish Growing Areas of California, California Department of Public Health.