This figure shows the notification rate of infectious syphilis (primary, secondary and early latent), less than two years duration in Australia in 2012, by age group and sex. The figure shows that the notification rate was higher in males than in females across all age groups except the 10 to 14 years age group, reflecting a male to female ratio of 9.2:1 The notification rate among females was highest in the 15 to 19 year age group, while the notification rate among males was highest in the 45 to 49 year age group.