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Does cerumen have a risk for transmission of hepatitis B?

M Tayyar Kalcioglu1, Riza Durmaz, Orhan Ozturan

  • 1Department of Otorhinolaryngology, Inonu University, Malatya, Turkey. mtkalcioglu@hotmail.com

The Laryngoscope
|April 20, 2004
PubMed

Insights

Cerumen, or earwax, can transmit the hepatitis B virus (HBV). This study found HBV DNA in 27.5% of earwax samples from infected patients, suggesting a novel transmission route.

Area of Science:

  • Hepatology
  • Virology
  • Infectious Diseases

Background:

  • Chronic hepatitis B virus (HBV) infection affects 350-400 million globally, posing risks for cirrhosis and hepatocellular carcinoma.
  • Understanding HBV transmission mechanisms is crucial for prevention.
  • Cerumen has not been previously investigated as a potential route for HBV transmission.

Purpose of the Study:

  • To evaluate the significance of cerumen in the transmission of hepatitis B virus infection.
  • To determine if hepatitis B virus DNA is present in cerumen samples from infected individuals.

Main Methods:

  • Prospective analysis of 40 cerumen specimens from patients with confirmed hepatitis B virus infection and detectable HBV DNA in serum.
  • Real-time polymerase chain reaction (PCR) was used to detect HBV DNA in cerumen samples.

Main Results:

  • Hepatitis B virus DNA was detected in 11 out of 40 cerumen specimens (27.5%).
  • Detected HBV DNA levels in cerumen ranged from 4.2 x 10 to 4.7 x 10 copies per sample.
  • A positive correlation was observed between HBV DNA concentrations in serum and cerumen.
  • HBV DNA was found in 50% of cerumen samples from HBeAg-positive patients and 12.5% from anti-HBe-positive patients.

Conclusions:

  • Cerumen represents a potential source for hepatitis B virus transmission.
  • Further research is warranted to explore cerumen's role in horizontal, nosocomial, and occupational HBV transmission.
Abstract

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