[A comparative evaluation of the technological characteristics of working with metal-containing filling materials in the clinic].

The features of clinical use of gallium alloys "Galloy" and "Metallodent-c" were compared with amalgam "Dispersalloy". Gallium materials, offered as an alternative for amalgams, are comfortable for use and more plastic. They moisten walls of cavity better, become hand faster and keep their form very well.

[Chronic infection of HeLa cells with respiratory syncytial virus].

Chronic infection of HeLa cells with respiratory syncytial virus (HeLa-RS) was produced at a multiplicity of infection of 0.00005 TCD50/cell. During 144 days, 21 passages of HeLa-RS culture were done.

[Viremia in respiratory syncytial virus infection].

Viremia was demonstrated to occur in experimental respiratory syncytial (RS) virus infection in suckling cotton rats and in natural infection in children. RS virus was isolated from the whole blood of the animals in 3 out of 6 experiments at 2, 5, 6, 7 and 15 days after inoculation, the maximum infectious titer being more than 10(4) TCPD50/0.1 ml.