Over the years, tests to detect HIV/AIDS, and how far the disease has progressed, have been refined and become more accurate. Dr Sangeeta Joshi explains the tests and what they reveal

The only way to know whether or not you are HIV positive is by being tested. There are benefits to being tested if you are at risk of being infected. However, you should make sure that the testing centre offers proper counselling before and after the test, says Mariette Correa