Laura Johnson Office of Shellfish and Water Protection February 19, 2015 Public Health – Always Working for a Safer and Healthier Washington 2014 Season • Vibrio parahaemolyticus Illnesses • Closures and time-to- temperature reductions • Environmental monitoring • Outreach • Other Vibrios Control Plan Rule Revision 2 Commercial shellstock oysters Non-commercial Single-source 26 Clams (geoduck and butter) 2 Multi-source 50 Crab 2 WA only 18 Oysters 8 WA and other states and provinces 32 Raw 5 Other commercial products Cooked 2 Shucked oysters 3 Both 1 Steamed clams 1 Salmon 1 Other Documented post harvest abuse 18 No traceback 7 3 Total Vibrio Illnesses from Oyster Consumption (Attributed to Washington State Growing Areas by Year) 120 100 80 60 Number of Number IIll ndividuals 40 20 0 2006 2007 2008 2009 2010 2011 2012 2013 2014 Year Single Source Multi Source Recreational 4 TTC Reduction Growing Area Harvest Reduction Date Hood Canal 6 5/28/2014 Oakland bay 7/25/2014 Samish Bay 7/25/2014 Henderson Inlet 7/29/2014 Totten Inlet 7/31/2014 Reach Island 7/31/2014 Hammersley Inlet 8/1/2014 Pickering Passage 8/4/2014 Hood Canal 7 8/5/2014 Nahcotta 8/7/2014 Grays Harbor 8/13/2014 Rocky Bay 8/13/2014 Rocky Bay 8/20/2014 Hood Canal 1 8/21/2014 Eld Inlet 8/27/2014 Skookum Inlet 8/27/2014 Hood Canal 9 9/4/2014 Drayton Harbor 9/4/2014 Peale Passage 9/5/2014 Annas Bay 9/15/2014 Nisqually Reach 9/15/2014 Burley Lagoon 9/19/2014 5 tlh level Sporadic illness tlh level and sporadic illness High Vibrio Level Closure Growing Area Closure Date Reopening Date Hood Canal 6 7/10/2014 8/15/2014 Hood Canal 7 7/10/2014 7/31/2014 Hood Canal 8 7/11/2014 8/22/2014 Totten Inlet 7/16/2014 7/31/2014 Hammersley Inlet 7/16/2014 8/1/2014 Hood Canal 9 7/18/2014 7/31/2014 Hood Canal 5 7/18/2014 8/1/2014 Hood Canal 4 7/18/2014 8/1/2014 Skookum Inlet 7/31/2014 8/20/2014 Dabob Bay 8/13/2014 8/28/2014 Hammersley Inlet 8/15/2014 8/28/2014 Sporadic Illness Closure Growing Area Closure Date Reopening Date Oakland Bay 8/1/2014 10/1/2014 Samish Bay 8/4/2014 10/1/2014 Pickering Passage 8/6/2014 10/1/2014 Totten Inlet 8/7/2014 8/14/2014 Rocky Bay 8/22/2014 10/1/2014 Totten Inlet 8/27/2014 10/1/2014 Eld Inlet 9/4/2014 10/1/2014 Hood Canal 1 9/4/2014 10/1/2014 Henderson Inlet 9/10/2014 10/1/2014 Annas Bay 9/23/2014 10/1/2014 6 Conduct monitoring from June through September and collect: • Oysters for tissue samples • Water, air and tissue temperature • Salinity Public Health Lab evaluates the oyster samples to quantify levels of: • tlh (species marker) • tdh (pathogenicity marker) • trh (pathogenicity marker) USB data loggers deployed at all weekly sampling sites Monitor near real-time water temperature 7 Growing Area Site Name Weekly Annas Bay Gold Coast Bi‐weekly Bay Center Goosepoint Random Dabob Bay Rock Point Tarboo Drayton Harbor Drayton Harbor Eld Inlet Chelsea Farms Grays Harbor Brady's Hammersley Inlet South Sound Mariculture Henderson Inlet Nisqually Hood Canal 2SeabeckBay Hood Canal 3 Taylor Brinnon Hood Canal 4Beacon Point Hood Canal 5Hama Hama Hood Canal 6Gold Coast Union Hood Canal 7Sisters Point Hood Canal 8Mcdermott Hood Canal 9 DeNottas North Bay Taylor Victor Oakland Bay Taylor Chapman Cove Pacific Coast Quinault Pickering Passage Calm Cove Quilcene Bay Yacht Club Samish Bay Taylor East Skookum Inlet Wallins Totten Inlet Taylor Oyster Bay 8 Dabob Bay 1000000 100000 10000 1000 TLH MPN TRH MPN MPN/g TDH MPN 100 TLH Closure Level 10 1 0.1 11‐Jun 16‐Jun 24‐Jun 30‐Jun 10‐Jul 16‐Jul 24‐Jul 27‐Jul 6‐Aug 10‐Aug 21‐Aug 26‐Aug 4‐Sep 10‐Sep 9 Dabob Bay 1000000 100000 10000 1000 TLH MPN TRH MPN MPN/g TDH MPN 100 TLH Closure Level 10 1 0.1 11‐Jun 16‐Jun 24‐Jun 30‐Jun 10‐Jul 16‐Jul 24‐Jul 27‐Jul 6‐Aug 10‐Aug 21‐Aug 26‐Aug 4‐Sep 10‐Sep 10 Clickable maps advisory Post signs News release Facebook posts Weekly results Weekly illness report Festivals 11 Vibrio Species Exposure Exposure Location Residence County alginolyticus Swimming Case Inlet Pierce Swimming Philips Lake Mason Cooked crab Indianola Beach Kitsap fluvialis Oysters Unknown Skagit Unknown Unknown Pierce Nontoxigenic cholera Oysters Hood Canal 1 (commercial) King Grays Harbor (commercial) Pierce Grimontia hollisae Oysters WA or BC (commercial) Out of state 12 DOH Food & Shellfish Microbiology Lab continued to detect V. vulnificus (Vv ) in oyster samples: ◦ Bay Center ◦ Drayton Harbor ◦ Samish Bay ◦ Quilcene Bay Present in low levels Further characterization of the isolates by FDA is Growing Area with ongoing Vv+ sample 13 Historically Vv has been isolated by the FDA: • 1984 sediment sample from Willapa Bay • 2007 oyster samples collected at the retail level (multiple growing areas) Health is not aware of any Vv-associated illnesses among people who’ve eaten shellfish from our state nor among people with exposure to Washington waters 14 Prevent Vibrio parahaemolyticus- associated illnesses ◦ Move towards a proactive management approach ◦ Base controls on risk and environmental conditions Align Washington’s Control Plan with the national requirements 15 Component Current Proposed Shucked meats Label with “For cooking only” Exempt shucked meats and post harvest processed oysters Shellfish No requirements Requirement to report production data Growing area Geographic area Risk level categories (coastal and inland) (historic illness trend) Time of harvest to Temperature control (placing Cooling oysters in temperature control) (reaching and maintaining 50⁰F) Time reduction Sporadic illnesses Air temperature threshold and closure and Harvest (water or tissue) temperature threshold in July and August Closure period Remainder of control plan 24 hours months Waivers Based on the criteria of no Based on providing a comparable illness level of public health protection 16 Laura Wigand [email protected] Public Health – Always Working for a Safer and Healthier Washington.