MORE than 16,000 Tasmanians were tested for HIV last year with 13 testing positive, according to a new report.
The Kirby Institute Annual Surveillance Report of HIV, released yesterday, found that newly diagnosed infections in Tasmania had increased from 1.4 to 2.8 per 100,000 people since 2003.
There was a slight improvement last year compared with 2011, when there were 15 new cases in the state.
Nationally, the number of cases increased by 10 per cent in 2012 - representing the fastest rise in 20 years.
The report said HIV continued to be transmitted primarily through unprotected sex between men, and noted that more young people in their teens and 20s were testing positive.
Tasmanian Council on AIDS, Hepatitis and Related Diseases chief executive Shaun Staunton said any transmission of HIV was a concern.
"There's still a big impact for people living with HIV in terms of their health and their quality of life," Mr Staunton said.
"It's certainly not as bad as it was in the '80s when people were handed a death sentence, but there are certainly still side effects, and mental health concerns around depression and anxiety."
Mr Staunton said the report also contained some positive news, showing that more people were getting tested and diagnosed early.
"In Tasmania in 2012 we actually had about 16,000 HIV tests happen in the state, but in 2009, 2010, and 2011, it was about 4500 tests each year," he said.
"So people are more aware that HIV can be a bit of an issue, and are more likely to go and get a test."
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