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. Author manuscript; available in PMC: 2007 Jun 4.
Published in final edited form as: J Infect Dis. 2007 Mar 5;195(8):1151–1159. doi: 10.1086/512161

Table 1.

Cell-mediated and humoral immune responses among individuals vaccinated with vaccinia virus (VV), by type of immunological test and interval since last vaccination.

Years since last VV vaccination IFN-γ ELISPOT assay Lymphoproliferation assay Cytotoxic T cell lysis Neutralizing antibody
≤2 54/86 (63) 34/40 (85) 27/36 (75) 31/36 (86)
3-20 1/2 (50) 1/1 (100) ND ND
>20 9/66 (14) 21/42 (50) 0/30 (0) 29/30 (97)

NOTE. Data are no. of positive individuals/total no. tested (%). IFN, interferon; ELISPOT,enzyme-linked immunospot; ND, not determined.