FIGURE 9.

Pre-treatment with IL-10 overcomes growth restriction of chlamydia in CA mϕ. Fluorescently labeled chlamydial inclusions of human macrophages 18 to 24 h post-infection are shown (A–D). Macrophages were treated with human interleukin-10 at 48 h (D), at 24 h (C) before infection, simultaneously with infection (B), or not treated at all with IL-10 (A).