Hepatitis C Virus (HCV)


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Characteristics

Morphology

Enveloped +ssRNA virus that is 50 nm in diameter, Flavivirus family, Hepacivirus genus

Growth Conditions

Cell culture


Health Hazards

Host Range

Humans, experimentally transmitted to chimpanzees

Modes of Transmission

Contact with infected blood through sharing needles, needle-stick injuries, sexual contact, and birth to an infected mother

Signs and Symptoms

75-80% of newly infected people develop chronic infection whereas 20-30% develops acute infection.

  • Acute Infection: Fever, anorexia, nausea, vomiting, jaundice, no lasting liver damage

  • Chronic Infection: Chronic liver disease, cirrhosis of the liver, liver cancer, death

Infectious Dose

Unknown.

Incubation Period

14 – 180 days (45 day average)


Medical Precautions/Treatment

Prophylaxis

None available

Vaccines

None available

Treatment
  • Acute Infection: Antiviral and supportive treatment
  • Chronic Infection: Monitoring for liver disease progression; antiviral therapy
Surveillance
  • Acute Infection: No serological marker available, PCR test for HCV nucleic acid
  • Chronic Infection: Screening assay for HCV antibody (anti-HCV), PCR for HCV nucleic acid
Emory Requirements

Report all exposures to human blood, OPIM or HCV infected material


Laboratory Hazards

Laboratory Acquired Infections (LAIs)

Prevalence of anti-HCV is slightly higher in health care workers than the general population. Parenteral inoculation is the predominant cause of HCV in health care workers.

Sources

Human blood, other potentially infected material (OPIM), inadequately sterilized instruments, needles, syringes


Supplemental References

Canadian MSDS

Pathogen Safety Data Sheets

BMBL

Biosafety in Microbiological and Biomedical Laboratories

CDC Guidelines

Hepatitis C Virus Information

OSHA

Bloodborne Pathogen Standard (29 CFR 1910.1030)

Virology Journal

Song et al: Thermal stability and inactivation of hepatitis C virus grown in cell culture. Virology Journal 2010, 7:40.


Containment Requirements

BSL-2

Work with known or potentially infectious material

BSL-3

Procedures involving production quantities of infectious material (over 10L of culture) and activities with high potential for aerosol production

ABSL-2

Work with infected non-human primates


Spill Procedures

Small

Notify others working in the lab. Allow aerosols to settle. Don appropriate PPE. Cover area of the spill with paper towels and apply an appropriate disinfectant, working from the perimeter towards the center. Allow appropriate amount of contact time before disposal and cleanup of spill materials.

Large

Contact Emory's Biosafety Officer (404-727-8863),
the EHSO Office (404-727-5922), or
The Spill Response Team (404-727-2888).


Viability

Disinfection

Cell culture-derived HCV (HCVcc) susceptible to 4% formaldehyde, 2.5% glutaraldehyde, and detergents (ionic and non-ionic).

Inactivation

HCVcc inactivated when incubated at 60°C for 8 minutes and 65°C for 4 minutes

Survival Outside Host

HCVcc remains stable at 37°C for 2 days and at room temperature for 16 days


Exposure Procedures

Mucous membrane

Flush eyes, mouth or nose for 15 minutes at eyewash station.

Other Exposures

Wash area with soap and water for 15 minutes.

Reporting

Immediately report incident to supervisor, complete an employee incident report in PeopleSoft.

Medical Followup 

7am-4pm (OIM): EUH (404-686-7941) EUHM (404-686-7106) WW (404-728-6431)

After Hours: OIM NP On Call 404-686-5500 PIC# 50464

Needle Stick (OIM): EUH (404-686-8587) EUHM (404-686-2352)

Yerkes: Maureen Thompson Office (404-727-8012) Cell (404-275-0963)


Viability

Disinfection

Susceptible to 1% sodium hypochlorite, 70% ethanol, and 2% gluteraldehyde.

Inactivation

Inactivated by heat (1 hour at 60°C) and acidic conditions (pH≤5).

Survival Outside Host

Dried cell cultures (2 days), salt solutions with 1% bovine albumin at -60°C (5 years).


Personal Protective Equipment (PPE)

Minimum PPE Requirements

At minimum, personnel are required to don gloves, closed toed shoes, lab coat, and appropriate face and eye protection prior to working with HCV. Additional PPE may be required depending on lab specific SOPs.

Additional Precautions

Take precautions when handling sharps. Use respiratory protection if work will be performed outside the biosafety cabinet. Additional precautions should be considered with work involving animals or large scale activities.