| [characteristics of the manifest and latent components of the hepatitis a epidemic process in cities of russia]. | seroepidemiological study of hepatitis a (ha) morbidity was carried out in three russian cities, with different levels of ha morbidity. the study included the analysis of ha morbidity for 22 years, the determination of antibodies to ha virus (anti-hav) in 2,958 healthy persons aged 0-12 months to 40 years and older. in one of the cities 7 isolates of ha virus were obtained from unrelated sources and the genotypes of the virus were determined. the study revealed that the frequency of seropositive ... | 2001 | 11550556 |