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Updated: Aug 14, 2026

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Detection of Low Copy Number Integrated Viral DNA Formed by In Vitro Hepatitis B Infection
Published on: November 7, 2018
[Detection of hepatitis A virus by means of electron microscopy (author's transl)]
Wiener Klinische Wochenschrift
|January 9, 1981
Abstract:
During an outbreak of hepatitis A in an institution, 34 stools of children were investigated by means of electron microscopy. Hepatitis A virus was found in four samples. All four children had previously received gammaglobulin injections and did not develop any clinical symptoms.
Insights
Hepatitis A virus was detected in children during an institutional outbreak. Gammaglobulin injections appeared to prevent clinical symptoms in infected children, indicating potential prophylactic benefits.
Area of Science:
- Virology
- Epidemiology
- Immunology
Context:
- Investigating a hepatitis A outbreak within an institutional setting.
- Examining stool samples from affected children during the outbreak.
Purpose:
- To identify the presence of Hepatitis A virus (HAV) in children during an institutional outbreak.
- To assess the clinical outcomes in children who received gammaglobulin injections prior to or during the outbreak.
Summary:
- Electron microscopy was used to analyze 34 stool samples from children during a hepatitis A outbreak.
- Hepatitis A virus was identified in four stool samples.
- All four children positive for HAV had received prior gammaglobulin injections and remained asymptomatic.
Impact:
- Suggests that gammaglobulin injections may offer protection against symptomatic hepatitis A infection in institutional settings.
- Highlights the importance of prophylactic measures during infectious disease outbreaks in vulnerable populations.
- Provides insights into the efficacy of passive immunization in preventing clinical hepatitis A disease.
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