given the hypothesis that t cells only respond to foreign antigens on cells which share a common major histocompatibility antigen , these results imply that the t cell responses to viral infections of hepatocytes -- for example , hepatitis b virus and the cns -- for example , subacute sclerosing encephalitis , are mediated through an antigen system other than hla class 1 .
C3714787
cns
C0014038
encephalitis