Neutralizing Antibody Against Adenovirus Type 3 Among the Residents of Fukushima Prefecture

Abstract

The serum specimens collected, during a period of 1964-1965, from 360 persons living in three different districts in Fukushima prefecture were examined quantitatively for the neutralyzing antibody against adenovirus Type 3. The antibody titers obtained were analyzed concerning age distribution, area, and year.
The following results were obtained:
1) Increase of antibody possessing rate was seen in the course of an age span from 3 to 15. Particularly, the increase was remarkable between 6 and 12, so-called at school-age. About 80% of persons examined were proved to have acquired the antibody within less than 15 years of age.
2) The antibody possessing rate seen in children of pre-school age in this prefecture was considerably lower than that in Okayama or Tokyo district appearing in published papers.
3) The antibody possessing rate was proved to differ according to area. In children under 10, it differed appreciably according to the year of experiment.
4) Out of persons possessing the antibody of over 1: 4 dilution level, 35% were positive at 1: 16, and 15%, at 1: 64. In case of school children, 30% of them were positive at 1: 16, and 27%, at 1: 64. As a whole, the antibody titers of school children were higher than those of adults.