Fig. 2

C. trachomatis infectivity from a cell culture of ECC1, human PBMCs and a co-culture of ECC1 and PBMCs, with or without azithromycin treatment. ECC1/PBMCs/co-culture of ECC1 and PBMCs were infected with C. trachomatis in MOI of 0.1. Cultures were either treated with azithromycin at 20 h PI, or not. The Chlamydia infected cells and culture supernatant were harvested a 44 h PI, sonicated and used to infect a new ECC1 monolayer for enumeration of recoverable IFUs. Data are presented as mean ± SD IFU/m (n = 9) determinations