<qa>  How many immunisations will be given to subjects in the active treatment group?Before administration, CN54gp140 or placebo will be mixed into an aqueous gel vehicle. The treatments will be administered intravaginally in a regimen of 9 immunisations over 3 weeks. Each immunisation of CN54gp140 vaccine will contain 100 μg of CN54gp140 protein, meaning that a total dose of 900 μg will be given to subjects in the active treatment group. 