[Hepatitis A: antibody conversion under gamma globulin (author's transl)]

Area of Science:

• Immunology
• Hepatology
• Preventive Medicine

Context:

• Austrian UNO contingent stationed on the Golan Heights for 6 months.
• Study involved 55 soldiers examined before and after duty.
• Focus on hepatitis A and liver enzyme monitoring.

Purpose:

• To assess the effectiveness of hepatitis A antibody monitoring and gamma globulin prophylaxis in soldiers deployed to the Near East.
• To detect any serological evidence of hepatitis A infection or exposure.
• To evaluate changes in liver enzymes (GOT, GTP, gamma-GT) during deployment.

Summary:

• 55 soldiers received hepatitis A antibody tests and liver enzyme analysis pre- and post-deployment.
• Prophylactic gamma globulin was administered twice during the 6-month deployment.
• No hepatitis cases were reported, but 4 initially sero-negative soldiers showed hepatitis A antibody conversion.
• No significant changes in liver enzyme levels were observed concurrently with antibody conversion.

Impact:

• Highlights the potential for hepatitis A exposure even with prophylaxis in deployed military personnel.
• Suggests the need for continued surveillance of infectious diseases in deployed units.
• Provides data on the immune response to potential hepatitis A exposure in a controlled setting.