[Effect of Coxsackie A13 and B3 virus infections on the primary immune response to sheep erythrocytes].

Inbred BALB/c mice of various ages (1 1/2, 3, and 5 months) inoculated with different doses of Coxsackie B3 virus showed reduced antibody responsiveness after immunization with sheep red blood cells 3-10 days after the primary infection. Reduced antibody response exhibited by spleen cells was observed in 7-month-old mice infected with Coxsackie A13 virus 10-11 days after infection.