The scene was set at the HIV Glasgow 2014 conference with public health expert, Kevin Fenton’s speech comparing the current HIV strategies of the UK and US.

Last week the US Centre for Disease Control (CDC) issued the first formal guidelines on pre-exposure prophylaxis (PrEP), a promising new way of preventing HIV transmission. PrEP involves people who do not have HIV taking a daily dose of one or two of the drugs that are used to treat HIV. Studies suggest that this can prevent transmission if the user is exposed to HIV.