[Radioimmunoassay for the detection of antibody to the surface antigen of hepatitis B].

A variant of radioimmunoassay for the detection of antibody to the surface antigen of hepatitis type B is described. The specificity of the method was demonstrated by the neutralization test.

[Heart lesions in mice with experimental infection caused by Coxsackie virus A13].

The results of pathomorphological and virological studies of experimental Coxsackie A 13 virus infection in BALB/C mice are described. Chronic myocarditis, endocarditis and valvulitis were observed in mice inoculated 10 to 12 hours after birth. The virus was revealed in the infected mice for 15-20 days only.