試題詳解

24. Herpes simplex virus-infected cells are poor targets for CD8 T cell killing because ______. 
(A) the virus inhibits HC class I expression
(B) infected cells do not express any viral proteins during latency
(C) the virus escapes from the phagosome into the cytosol
(D) the virus blocks phagosome-lysosome fusion
(E) the proteasome cannot generate viral peptides for presentation by MHC class I molecules.