[Characteristics of field isolates of Newcastle disease virus isolated in the course of outbreaks in the poultry plant in the Leningrad region in 2000].

A field isolate of Newcastle disease virus (NDV) was isolated in the Russko-Vysotskaya poultry farm, Leningrad region. Within four days after infection, the isolate caused 100% mortality in 60-day-old susceptible chickens. The HA titer of the allantoic fluid samples collected after one passage in SPF-chicken embryos was 1:512, and it reacted only with the NDV specific antiserum in HI test.

[Comparative study of the reactivity, safety and immunogenicity of "Havrix" inactivated hepatitis A vaccine].

This paper sums up the results of controlled field clinical trials of adult and childhood variants of Harvix, inactivated vaccine from hepatitis A. The vaccine is weakly reactogenic and safe. After a single injection of Harvix-1440 vaccine to adults the percentage of seroconversions in previously seronegative individuals was 80.