Knowing your HIV status and that of your partner is important and if you are at regular risk of potential exposure to HIV you should have a regular HIV test.
The best way to prevent HIV is to use a condom for sex and to never share needles or other injecting equipment (including syringes, spoons and swabs).
HIV treatment with ART substantially reduces the risk of passing the virus onto someone else.
All pregnant women are offered a blood test to check if they have HIV as part of routine antenatal screening. If untreated, HIV can be passed from a pregnant woman to her baby during pregnancy, birth or breastfeeding. Treatment in pregnancy greatly reduces the risk of passing on HIV to the baby.