Thus , failure of virus-exposed T cells to produce Fos and Jun could contribute to the increase in illness due to influenza virus in the elderly .
thus , failure of virus-exposed t cells to produce fos and jun could contribute to the increase in illness due to influenza virus in the elderly .
O O O O B-cell_type B-cell_type I-cell_type O O B-protein_molecule O B-protein_molecule O O O O O O O O O B-virus I-virus O O B-multi_cell O