6 chimpanzees , injected either with the control plasma derivatives or with the untreated infectious reference plasma , were infected with hepatitis b virus , whereas 5 chimpanzees , injected either with the test plasma derivatives or the infectious reference plasma to which the hbig had been added , did not show any evidence of hepatitis b infection during the follow-up of 1 year .
C0062525
hbig
C0019163
hepatitis b infection