FIG. 4.
Densities of MIP-1α- and MIP-1β-positive cells in the paracortex of axillary (A) and genital (B) lymph nodes. Consistent with increased beta-chemokine mRNA levels at 6 months p.c., the vaccinated, unprotected animals had increased numbers of MIP-1α- and MIP-1β-expressing cells in axillary and genital lymph nodes than did the vaccinated, protected animals. Individual monkeys from the uninfected (SIV−) (▪), vaccinated and protected (▴), vaccinated but unprotected (▾), and unvaccinated (SIV+) (♦) groups are represented. The horizontal lines represent the mean numbers of MIP-1α- and MIP-1β-positive cells for each experimental group.