Occupational exposure to hepatitis B in paramedics

Area of Science:

• Occupational Health
• Virology
• Epidemiology

Background:

• Hepatitis B virus (HBV) poses an occupational risk to healthcare professionals.
• Paramedics are frequently exposed to bodily fluids, increasing their risk of infection.
• Understanding HBV seroprevalence in paramedics is crucial for implementing preventive measures.

Purpose of the Study:

• To assess the occupational risk of hepatitis B infection among Seattle paramedics.
• To determine the seropositivity rate for hepatitis B virus markers in this cohort.
• To investigate potential correlations between seropositivity and demographic/occupational factors.

Main Methods:

• Serum samples were collected from 59 Seattle paramedics.
• Hepatitis B serum markers, including antibody to hepatitis B surface antigen (anti-HBs) and antibody to hepatitis B core antigen (anti-HBc), were tested.
• Seropositivity rates were compared to a similar Seattle population.

Main Results:

• 25% of paramedics showed evidence of past or present hepatitis B virus infection (anti-HBs or anti-HBc).
• This seropositivity rate was five times higher than in a comparable general Seattle population.
• Seropositivity did not correlate with age, race, clinical history, or length of service.

Conclusions:

• Paramedics exhibit an elevated occupational risk for hepatitis B infection.
• The high frequency of low-titer anti-HBs suggests frequent, low-level exposure to the hepatitis B virus.
• Hepatitis B vaccination is strongly recommended for paramedics to mitigate infection risk.