preparedness and region 7 & 8 full scale exercise value ... · mlv; listeria . biological...
TRANSCRIPT
Preparedness and Region 7 & 8 Full Scale Exercise
Value and Lessons Learned
Nancy Hall, Donald Simmons and Michael Wichman
State Hygienic Laboratory
• Iowa’s Environmental and Public Health Laboratory
• Established by Iowa Code 263.7 in 1903
• To protect the health of Iowans through – Laboratory and field based investigations of
microbiologic, chemical or other threats to human health;
– Recommending methods of overcoming and preventing disease; and
– Supporting state and local agencies in the ongoing evaluation of the state’s environmental quality and public health.
Iowa SHL Preparedness
1. CDC - Laboratory Response Network (LRN)
– Biological and Chemical Threats (Radiological)
2. FDA - Food Emergency Response Network (FERN)
– Biological, Chemical and Radiological Threats
3. EPA – Environmental Response Laboratory Response Network (ELRN)
– Biological, Chemical and Radiological Threats
4. EPA – Water Laboratory Alliance (WLA)
Why Participate?
• Test preparedness
• Participate in exercises – Test internal and external communication
– Test sample accessioning and chain-of-custody
– Test internal incident command structure
– Test methods
– Test reporting
• Full scale exercise – LRN-C, LRN-B, WLA and FERN
SHL Coordination
• Established command center
• Daily briefings
• Video conference with Ankeny
• Maintained log of emails and phone calls
• Participated in Missouri, EPA and FERN conference calls
• Reported results via EPA WebEDR, CDC Results Messenger and FDA eLEXNET
• Internal SHL evaluators
SHL Participation
• Chemical – Environmental and Clinical
– EPA
– CDC
– Ankeny Laboratory - Don Simmons led
• Biological – Environmental and Food
– EPA
– FERN
– Coralville Laboratory - Nancy Hall led
Assessing Exposure to Arsenic
• Environmental samples
–Arsenic in Water samples
• Human urine specimens
–Arsenic in urine specimens from potentially exposed people
Arsenic in Water Samples
• Water samples were received for analysis at the Laboratory
• Arsenic was one of the suspected agents of concern
Arsenic in Water Samples
• Chain of Custody extremely important in these situations
• The emergency nature of these samples require special attention
• Additional documentation required – internal chain-of-custody
• Sample storage – secure evidence area with limited access
Arsenic in Water Samples
• Samples were checked for proper preservative – pH < 2 – for metals determination
• Samples analyzed by ICP/MS for total arsenic
• SHL results were on target with known values provided at conclusion of exercise
Arsenic in Urine Specimens
• Received more than 100 Urine specimens for arsenic exposure
• Urine specimens analyzed by ICP-DRC-MS
• SHL CLIA Certified for determination of metals in blood and urine
Arsenic in Urine Specimens
• Evidence tape use necessary
• Secure storage and security
• Log-in process not routine
Arsenic in Urine Specimens
• All samples were double-bagged
• MORE evidence tape
• Inspected for tampering or
leakage
Arsenic in Urine Specimens
• Log-in process took about two hours – very time consuming
• Samples were frozen
• All labels checked against Chain-of-Custody forms
Results Reporting
• EPA – used WebEDR website and reporting system
• CDC – used Laboratory Results Messenger – Web-based reporting system
• Both systems worked but learning curve was steep for WebEDR system
• Required more time to report water sample results than it did to run them
What Went Well
• Good Communications - External and Internal – Daily meetings and teleconferences – Always felt in the loop – Phone numbers handy
• WebEDR Hotline – Someone available when you need to get
the data out
• Everyone was committed
Chemical Lessons Learned
• Chain-of-Custody forms for EPA water samples didn’t have enough signature lines
• WebEDR was not intuitive – in the future, we need to practice reporting data by any means so that time is not wasted in a real situation
• A way to report all results securely but quickly would be beneficial
• Overall: A very good exercise
Biological Samples
• Water Methodology
– EPA Non-Typhoidal Salmonella in Water Protocol
• Classical microbiology: plate and tube inoculation, following by Salmonella serologies for confirmation
• Results in 4 days
• In addition, SHL also performed BAX PCR; screening results in 2 days
• Food Methodology
– Not prescribed so used BAX PCR
– Screening results in 2 days
SHL Food Microbiology Lab
• FERN Micro CAP Lab
• Respond to food microbiology outbreaks – Salmonella in peanut
butter
– Salmonella in deli meat
• Participate in various FERN and FDA proficiency exercises
• Participate in FERN capacity exercises
SHL Environmental Molecular Lab
• Appropriate molecular workflow
• Separation from clinical and environ activities
• Validated new STEC and Shigella qPCR assays
• Participate in various MLV; Listeria
Biological Lessons Learned • Internal chain of custody versus sample
tracking discussions • Better communication from IC
– Emails to all participants with contact information and roles defined (e.g. esp POC)
• When reporting results, define “presumptive” and “confirmed” results
• Suggest incorporation of faster screening methods (e.g. molecular assays)
• Better understanding of multi-regional expanded incident command structure(see next slide)
Expanded Incident Command
Mutual Support Laboratory (MSL)
Analytical Services Requester (ASR)
Primary Response Laboratory (PRL)
Environmental Unit (EU)
Thank you!
Questions?