A new study has found a 10 per cent increase in the number of HIV-infected cases in Australia, which is said to be the fastest in the last two decades.

A latest annual report was released by Kirby Institute at the University of New South Wales on Sexually Transmissible Infections in Australia, according to ABC news.

The new statistics show the increase in number of infections across the country which rose 10 per cent last year. The latest report is not a good one, with increases reported for nearly all STIs, the report said.

According to David Wilson of the Kirby Institute, who conducted the study, “It’s very alarming what’s happening with HIV at the moment. We’ve had over 1,250 cases of HIV recorded, that’s those that have been diagnosed.”

He said: “there are about 25 per cent of cases that are undiagnosed in Australia as well”.