| Critical Biological Accidents
- Definition
A CRITICAL BIOLOGICAL ACCIDENT is defined as a wound, contact, or aerosol exposure of an individual to a biological commodity.
- Reporting
- Critical biological accidents involving biological
commodities requiring approval from the
Institutional Biosafety Committee (IBC),
Biological Safety Program (BSP), or the
Environmental Health and Safety Office (EHSO) must
be immediately reported to the supervisor or
instructor in charge and then by telephone to the
Biological Safety Program (BSP) at 956-3197.
- Critical biological accidents involving Biosafety Level
2 or greater microbial agents and r-DNA molecules
shall be immediately reported to the supervisor or instructor in charge who decide whether the degree of exposure and agent involved warrants immediate notification of the BSO at the EHSO.
- Medical Treatment
When medical treatment is required, please go to the
nearest emergency room or your personal physician or UH
Health Services for medical management of the accident and
to advise the injured or exposed person as to medical
treatment.
- Decontamination
Decontamination of person, clothing, equipment, and facilities shall be by methods stipulated in the laboratory protocol for the particular agent and work area. Biological Emergency Spill Kit (suggested).
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Noncritical Biological Accidents
- Definition
NONCRITICAL BIOLOGICAL ACCIDENTS is defined as the
contamination of physical equipment or facilities by a
biological commodity without exposure of personnel.
- Reporting
Noncritical biological accidents involving biological
commodities shall be reported to the supervisor or instructor
in charge. Need not be reported to BSO.
- Decontamination
Contaminated areas shall be decontaminated by methods
stipulated in the protocol for the particular agent and
laboratory.
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Biohazard Spill in a Biological Safety Cabinet
A spill that is confined to the interior of the Biological Safety
Cabinet (not a Laminar Clean Bench) should present a little or no
hazard to personnel in the area.
- Chemical disinfectant procedures should be initiated at once
while the cabinet ventilation system continues to operate
to prevent escape of contaminates from the cabinets.
Disinfectant with a detergent has the advantage of
detergent activity, which will help clean the surfaces by
removing both dirt and microorganisms. A suitable
disinfectant is a 3% solution of an iodophor such as
Wescodyne or a 1 to 100 dilution of household bleach
(e.g., Chlorox) with 0.7% non-ionic detergent.
The operator should wear safety goggles, gloves and other
appropriate personnel protective equipment during this
procedure. Use sufficient disinfectant solution to ensure
that the drain pans and catch basins below the work
surface contain the disinfectant.
Immediately after a spill, the cabinet should be allowed to run
for at least ten minutes to allow the cabinet to purge any
airborne contaminants. Chemical decontamination
procedures should be conducted while the cabinet continues
to operate to prevent escape of contaminants from the
cabinet.
Spray or wipe walls, work surfaces and equipment with
appropriate disinfectant. Germicide should at least have
a minimum contact time of ten minutes.
Flood the top work surface, tray, and if a BSL 1 cabinet, wipe
the drain pans and catches basins below the work surface
with a sponge or cloth soaked in a disinfectant. For BSL
2 cabinets, drain the tray into the cabinet base, take out
the tray and remove exhaust grill work and wipe off top
and bottom (underside) surfaces with a sponge or cloth
soaked in a disinfectant. Then replace in position and
drain disinfectant from cabinet base into appropriate
container and autoclave waste liquid. Gloves, cloth or
sponge should be discarded in an autoclave bag or
container and autoclaved.
For BSL 3 or greater materials spill, decontaminate cabinet
with formaldehyde and other appropriate means (service
provided by EHSO).
After contaminated gloves and clothing have been removed, wash
arms, hands and face with germicidal soap.
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Biohazard Spill Outside a Biological Safety Cabinet
- Hold your breath, leave the room immediately, and close door.
Turn on ultra-violet light if these are present.
- Warn others not to enter the contaminated area.
If possible place warning signs.
- Immediately remove contaminated clothing, place it in the
autoclave bags provide for transporting solid wastes to
the autoclave, and seal the bag.
- Disinfect exposed areas of the body with soap and warm water
(or other disinfectant). Take a shower and autoclave
contaminated clothing immediately upon leaving and securing the contaminated area. Avoid contact with other individual a
much as possible to prevent additional exposure.
- Inform the Principal Investigator responsible for the area and
the EHSO as soon as safety possible.
- Wait at least one hour for aerosols to settle and for the UV to
act before re-entry into the contaminated area.
- Put on a long sleeved gown, mask, eye protection preferably
goggles, rubber gloves, and shoe cover before re-entering
the contaminated room. For a high risk agent, a jumpsuit with tight-fitting wrists and a self-containing breathing
apparatus (SCBA) respirator must be used.
- Pour an appropriate decontaminate solution around the spill.
Paper towels soaked with disinfectant may be used to cover
the area. Avoid pouring the disinfectant directly onto
the spill to minimize the generation of aerosols.
- Let stand approximately thirty minutes to allow an adequate
contact time.
- The dust pan and squeegee should be placed in an autoclave bag
and autoclaved.
- All accidents, exposures, and potential hazards should be
reported to EHSO. In severe emergencies, telephone
communication should be used to secure immediate medical care, decontaminating procedures or facility repairs.
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Broken and Spilled Cultures
Broken cultures should be covered at least ten minutes with a
cloth soaked in disinfectant. The breakage and the cloth should be
cleared away into a dust pan and the area swabbed with
disinfectant. The broken material, swab, dust pan and other cleaning
equipment should be placed in a biological wastes container for
autoclaving. All necessary personnel protective equipment should be used.
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Accidental Injection, Cuts and Abrasions
The individual should remove protective clothing, wash the hands
and the affected area, apply disinfectant if appropriate and go to the first-aid room, where the person in charge should be informed about the cause of the wound and agent involved. If considered necessary a physician should be consulted and advise followed. The accident should be reported.
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Accidental Ingestion of Potentially Biohazardous Material
The individual should be taken to the first-aid room, after
removal of protective equipment. A physician should be informed of the agents ingested and his advise followed. Appropriate written records should be kept. (Poison Center: 941-4411).
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Procedures Following a Potentially Hazardous Aerosol Release (Other Than in a Safety Cabinet)
All persons should vacate the affected area at once. The
supervisor and the BSP should be informed immediately. No one should
enter the room for at least one hour. This allows aerosols to settle. Signs should be posted indicating that entry is forbidden. After one hour, decontamination should proceed, supervised by the BSP. Affected persons should be referred for medical treatment.
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Breakage of Tubes with Potentially Biohazardous Materials in Centrifuges not Having Safety Cups
- If a breakage is known or suspected while the machine is
running, the motor should be switched off and the machine
should not be opened for at least thirty minutes, after
the centrifuge stops.
- If a breakage is discovered after the machine has stopped, the
cover should be replaced and left closed for a minimum of thirty
minutes.
- The BSP should be informed.
- Strong (e.g., thick rubber) gloves, covered if necessary with
suitable disposable plastic gloves, should be worn for all
subsequent operations. Forceps should be used, or cotton
swabs held in forceps, to pick up glass debris.
- All broken tubes, glass fragments, bucket, trunnions, and the
rotor should be placed in non-corrosive disinfectant known
to be effective against the microorganisms concerned, use
appropriate dilution and leave soaking for 24 hours or
autoclaved. Unbroken, capped tubes may be placed in
disinfectant in a separate container and the contents
recovered after one hour.
- The bowl should be swabbed with the same disinfectant, at
appropriate dilution, left overnight and then swabbed
again, washed with soap and water and dried. All swabs
should be treated as biological wastes. Hypochlorite
should not be used as they corrode metal.
- If safety cups (sealed buckets) are used for biological
materials they should be opened in a Class II Biosafety
Cabinet. If a tube has broken the bucket cap should be
replaced loosely and the bucket autoclaved or placed in a
suitable non-corrosive disinfectant.
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Radioactive-Biological Hazardous Combination Spills
- (SWIM) Secure, Warn others of the spill, Isolate the spill
area, and Minimize exposure.
- Survey radiation to determine whether there is a need to protect
personnel.
- Clean-up according to guidelines in Part D Biohazard Spill
Outside of a Biological Safety Cabinet.
- 14C and 3H can be steamed autoclaved without hazards. However,
125I should be inactivated by used of compatible liquid
chemical germicide before the shipment is packaged as
radioactive wastes. (Note: Do not use Cl2 as a liquid
germicide; potential release of I2 through chemical reaction can occur).
- After clean-up, a final radiation survey is conducted.
- Please see the Radiation Safety Manual or call the Radiation
Safety Officer for more information.
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Personal Injury due to Biological Accidents
- Assess the severity of the injury and the circumstances surrounding
the incident.
- If work-related or non-employee injury or illness is determined to
be of an emergency nature, the individual should receive treatment at
the nearest medical emergency department.
- In the event that an individual requires medical assistance at the
scene of the incident or needs to be transported to the Emergency Room
by medical personnel, call Campus Security at 6-6911.
- It is highly suggested, for non-emergency injuries, send the
employee or injured individual to University Health Services, Straub
Hospital and Clinic or their private physician.
- If the individual can be moved and transported safety by non-medical
personnel, a supervisor or co-worker should accompany the injured
individual to the appropriate healthcare facility.
- Employers, supervisor and WC Coordinators have a responsibility to timely report the work-related injury/illness of an employee to the University's insurance carrier. The UH Form 79 (OPHR), "Report of Work-Related Injury/Illness", is available for reporting purposes. Please refer to the UH Administrative Procedures A9.720 Workers Compensation for further instruction in this matter.
- If unable to complete the "Report of Work-Related Injury/Illness" at
the time of the injury, a call from the medical advisor may be required
to identify the employee and the department. Briefly explain the injury
and identify it as work-related.
- Even if the reported injury or illness is not serious enough to
require treatment, an "Accident Injury and Illness Report" should be
completed and sent to EHSO. If follow-up care is necessary, that care
will be reported.
- It is the employee's responsibility to contact their personnel
officer if any lost time is involved, as well as to notify their
department of their absence. within the department.
- All suspicious or work-related illness must be reported, directly
to Biosafety Program. Biosafety Officer will notify appropriate UH,
State and Federal Agencies (Departments of Health and Agriculture).
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