| [antibody prevalence against astrovirus according to age groups]. | a study on the prevalence of antibodies against human astrovirus serotype 1 (hastv-1) and 2 (hastv-2) was carried out in 170 serum samples obtained from different age groups in tokyo and saitama, japan. prevalence of specific igg antibodies to both hastvs showed decreasing tendency after birth and reached a minimum at the 3-5 months age group. then, prevalence of antibodies to both serotypes increased after 6 months old, and nearly reach to 100% by the third year of life. the antibody titer to b ... | 1999 | 10423948 |