The Annual Surveillance Report on Transfusion-transmissible Infections (TTI) in Australia provides a comprehensive analysis of trends in transfusion-transmissible infections among Australian blood donors. The report aims to provide evidence to inform the ongoing assessment of laboratory testing algorithms for detecting transfusion-transmissible infections as well as evaluation and revision of donor education guidelines for minimising the risk of transfusion-transmissible infections and thus maximising the safety of the Australian blood supply.
- More than 7.3 million donations were tested for transfusion-transmissible infections in Australia during 2005 – 2010 with an average of about 1.2 million donations per year.
- The number of blood donations steadily increased during 2005 to 2009 and then slightly declined (0.67%), in 2010.
- During 2005 – 2010, a total of 1,483 (20.25 per 100,000 donations) were found positive for at least one of the transfusion-transmissible infections – hepatitis B virus (HBV), hepatitis C virus (HCV), human immunodeficiency virus (HIV), human T‑cell lymphotropic virus (HTLV), or active syphilis.
- Overall, HCV and HBV were the two most common infections diagnosed in Australian blood donors during 2005-2010, together contributing more than 94% of all infections.
- In general, the presence of any transfusion-transmissible infection among Australian blood donations has remained low during 2005 – 2010 and has decreased steadily over the past three years, from 22.3 per 100,000 donations in 2008 to 16.9 per 100,000 donations in 2010.