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Hepatitis B virus transmission in an elementary school setting
I Williams1, M G Smith, D Sinha
1Division of Viral and Rickettsial Diseases, National Center for Infectious Diseases, Centers for Diseases Control and Prevention, Atlanta, Ga 30333, USA.
JAMA
|January 7, 1998
Summary
Hepatitis B virus (HBV) transmission occurred from an infected student to a teacher in an elementary school. This case highlights potential transmission routes in schools, even without obvious exposure, emphasizing the need for awareness.
Area of Science:
- Infectious Diseases
- Hepatology
- Epidemiology
Background:
- The transmission risk of Hepatitis B virus (HBV) in educational settings like day care centers and schools is generally considered low.
- This study investigates a specific instance of HBV transmission within an elementary school environment.
Observation:
- An elementary school teacher was diagnosed with acute Hepatitis B.
- The teacher reported no typical risk factors for HBV acquisition, and her household members were not infected prior to her illness.
- An HBV-infected student in the same school was identified as the likely source of transmission.
Findings:
- Genetic analysis revealed identical HBV DNA sequences and the same subtype (ayw1-2) in both the infected student and the teacher.
- Despite close contact, no evidence of HBV transmission was found among other students or school staff.
- The precise mechanism of HBV transmission from the student to the teacher, without apparent percutaneous or permucosal exposure, remains unidentified.
Implications:
- This case demonstrates that HBV can be transmitted in elementary schools from student to teacher, even without overt exposure.
- It underscores the importance of considering less obvious transmission routes in healthcare and educational settings.
- Further research may be needed to fully understand and prevent such transmissions in schools.