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  • Title: [Family-acquired hepatitis A--prevalence of hepatitis A among the family in Aichi Prefecture, 1990].
    Author: Yamashita T, Sakae K, Ishihara Y, Isomura S, Totsuka A, Moritsugu Y.
    Journal: Kansenshogaku Zasshi; 1992 Jun; 66(6):781-5. PubMed ID: 1331263.
    Abstract:
    We studied the transmission of hepatitis A virus (HAV) in 45 families, which members were diagnosed as hepatitis A in 8 hospitals in 1990. Feces and sera from 50 patients and their 126 family members were tested for HAV-specific antigen and IgM antibody by ELISA or polymerase chain reaction (PCR) technology. From the interval of the onset of hepatitis or detection of HAV antigen in feces, HAV transmission was recognized in 11 (24.4%) of 45 families. The transmission was found to be concerned with contacts of the children and that from children to parents was found in 4 families and the reverse in 2. HAV antigen was detected from feces of 4 family members before onset of icterus by ELISA and furthermore, 3 by PCR. It was indicated that these methods would be used to prevent the transmission in a family, day-care centers, or institutions for the mentally retarded.
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