Virus-immune cytotoxic T-cell activity following negative selection of alloreactive precursor lymphocytes.

: Results obtained using negative selection protocols indicate that it is possible to obtain vaccinia-virus-specific killing of cells expressing H-2 types other than those encountered during physiologic development in thymus. This response has been found to be neither reciprocal for different H-2 types, nor identical for influenza and vaccinia viruses. Prior priming with virus apparently suppresses the capacity of T cells to be sensitized to H-2-different virus-infected cells.