"Among MSM, the greatest number of new diagnoses (1,102) were in men aged 35-49, representing a third of MSM who were newly diagnosed with HIV in 2012. However, there are also more older people living with HIV than ever before, partly to do with an ageing population living with HIV and partly to do with increasing new infections in older men. In 2012, one in nine MSM who was newly diagnosed was 50 or over. "

There is clearly a different pattern in US.