Safe Handling, Packaging & Shipping of Infectious Substances. Utah Department of Health November 21, 2002 Kim Christensen. Objectives . Information on possible organisms Why these organisms? Safety Samples Packaging Transport/Shipping. Agents of Highest Concern.
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Safe Handling, Packaging & Shipping of Infectious Substances
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Other Possible Agents • Brucella spp. – Brucellosis • Coxiella burnetti – Q-fever • Arboviruses (West Nile) – encephalitis • Mycotoxins • Ricin Toxin – Castor beans • SEB – Staphylococcus Enterotoxin B
Why these organisms? • Can cause disease via aerosol route • Fairly stable in aerosolized form • Susceptible civilian population • High morbidity and mortality rates • Difficult to diagnose and/or treat • Some can be transmitted person-to-person
Bacillus anthracisAnthrax • Cutaneous Exposure- • A skin lesion evolving during a period of 2-6 days from a papule, through a vesicular stage, to a depressed black eschar.
Cutaneous Anthrax • Intense itching • Painless skin sore • Incubation 1-5 days (up to 60) • 20% fatality if untreated (may spread to blood) • Direct contact with skin lesion may result in cutaneous infection
Inhalation Anthrax • Inhalation Anthrax- • A brief prodrome resembling a viral respiratory illness with radiograph evidence of mediastinal widening
Inhalation Anthrax • Flu-like symptoms – • Fever, fatigue, muscle aches, difficulty breathing, headache, chest pain & non-productive cough • 1-2 day improvement followed by respiratory failure, meningitis may develop • No person-to-person spread
Francisella tularensisTularemia • Humans become infected by: • Handling infected animal carcasses • “Rabbit Fever” • Bites of ticks, deer flies, or mosquitoes • No person-to-person transmission • Endemic in Utah
Plague • Distribution • Highest in 4 corners area – Western states • Prairie dog population
Clostridium botulinum Organism – gram positive, spore-forming, anaerobic bacilli Botulinum toxin Neurotoxin A, B, C1, D, E, F, G Botulism
Botulism • Foodborne • Diplopia (double vision), blurred vision, flaccid, symmetric paralysis (rapid progression) • Infant • Constipation, poor-feeding, “failure to thrive”, weakness, impaired respiration and death • Wound • Same symptoms as foodborne w/infection through a wound • Other • Non-infant patient with no suspect food or wound
Botulism • Foodborne • Most likely presentation for BT event • Mortality • Currently 5-10% • Previously 60% • Wound • Mortality 15% • Emerging problem of drug users • Injecting Black Tar Heroin
Orthopox virus DNA virus Brick-shaped structure 200 nm in diameter Incubation 8-16 days Mortality 30% Clinical symptoms Acute Fever Headache Vomiting Backache Variola majorSmallpox
Variola majorSmallpox • 4 Types • 1. Ordinary – most frequent • 2. Modified • Mild • Occurring in previously vaccinated persons • 3. Flat • 4. Hemorrhagic • Much shorter incubation • Not likely to be recognized as Smallpox (initially)
Variola majorSmallpox • Disease Progression • Incubation Period • Initial Symptoms – Prodrome • Rash Development & Distribution • Variola minor • Less common clinical presentation • Much less severe disease
Rash Begins on face, hands, forearms & spreads to lower extremities within 7 days Lesions on palms & soles of feet Variola majorSmallpox
Smallpox • Spread by infected droplets • Most infectious after onset of rash • Contagious until the last scab falls off • Vaccine given within 4 days of exposure can prevent disease or lessen symptoms • 70% recovery rate • Chicken pox vs. Smallpox
Ebola Lassa Marburg Hanta Dengue Yellow fever Crimean-Congo Rift Valley fever Other Viral Hemorrhagic Fevers
Viral Hemorrhagic Fevers • High Fever with: • Mucous membrane bleeding • Petechiae • Malaise • Muscle-aches • Headaches • May have diarrhea or vomiting • Fatality depends on virus – 90% Ebola
Viral Hemorrhagic Fevers • Mosquito or tick vectors • Person-to-person transmission through body fluids/blood • Vaccine available for Yellow Fever • People can be infected but show no signs or symptoms of disease
Safety First • First Responders • Personal Protective Equipment • Established protocols • Transporters • Regulations • Lab Personnel • Personal Protective Equipment • Established protocols • Biosafety Containment • Vaccinations • Use Universal Precautions – treat everything as if it were contaminated
Safety • First Responders • Know what you “might be” dealing with • Protect yourself • Protect the community • Protect the next in line (transporter) • Recommendations for the Selection and Use of Protective Clothing & Respirators Against Biological Agents: • www.bt.cdc.gov/DocumentsApp/Anthrax/Protective/10242001Protect.asp
Safety • Transporter/Shipper • Know what you “might be” dealing with • Protect yourself • Protect the public • Follow rules and regulations • IATA, USPS, DOT, Etc.
Safety • Laboratory Personnel • Handle & process according to Biosafety Level Classifications (Level 1, Level 2, Level 3, Level 4) • Biosafety in Microbiological & Biomedical Laboratories CDC/NIH, 4th Edition. • Protect yourself • Protect other laboratorians • Protect the public
Variola majorSmallpox • Biopsy Specimen • 2-4 portions of tissue • Sterile, leakproof, freezable container • Scabs • Scrapings/material • Sterile, leakproof, freezable container • Vesicular fluid • Separate lesions • Include cellular material
Viral Hemorrhagic Fever • Specific handling conditions are currently under development at the CDC. • Serum • 10-12cc of serum
Urine At least 25 mL Screw-cap plastic containers Freeze ASAP Whole Blood Two – 5 or 7 mL purple-top (EDTA) tubes – vacuum-fill only (unopened) Whole Blood One 5 mL or 7 mL gray-top or green-top tube (unopened) One empty tube Whole Blood Two 10 mL red-top tubes no anticoagulant Do not separate serum from cells Chemical ExposureSpecimens to be collected from each individual
Evidentiary MaterialsTo be delivered directly to the UDOH - Lab • Non-organics • Powder • Paper • Containers • Organics • Hair • Wood • Liquids • Example procedure for collecting environmental samples: • www.bt.cdc.gov/Agent/Anthrax/environmental-sampling-apr2002.asp
Chain of Custody • Always observe a Chain of Custody • Evidence • CollectorTransporter Laboratory • Each person to touch the sample must sign for it. • Laboratory – • Signed for each time the sample is manipulated
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