MOST COMMON SEXUALLY TRANSMITTED DISEASES
CHLAMYDIA
* Chlamydia is the most common sexually transmitted infection (STI) in Australia.
* In 2016, there was a total of 71,751 notifications of chlamydia.
* Three-quarters (75 per cent) of chlamydia notifications were among people aged 15-29 years.
GONORRHOEA
* In 2016, there were 23,887 new diagnoses of gonorrhoea.
* Between 2012 and 2016, gonorrhoea notification rates rose by 63 per cent - from 62 per 100,000 to 101 per 100,000.
* Gonorrhoea rates increased by 72 per cent among men and 43 per cent among women.
* More men than women have gonorrhoea. The notification rate in 2016 was higher in males at 146 per 100,000. In females it was 56 per 100,000.
HIV
* The number of new HIV diagnoses in Australia remains stable.
* In 2016, there were 1,013 new HIV notifications.
* Three-quarters of cases occurred between gay and bisexual men.
* 20 per cent of HIV occurred as a result of heterosexual sex.
* About 25 per cent of HIV cases among gay and bisexual men in 2015/16 were diagnosed late.
* More than half (55 per cent) of HIV cases were diagnosed late in heterosexuals.
HEPATITIS
* There are an estimated 227,306 people living with chronic hepatitis C.
* 30,434 were cured of hepatitis C in 2016.
* More than 230,000 Australians live with chronic hepatitis B infection.
* Hepatitis B cases have declined overall by 27 per cent.
(Source: Annual Surveillance Report on HIV, viral hepatitis and STIs in Australia 2017, the Kirby Institute at the University of NSW)