evidence: Yes, however, treatment with a combination of HIV medicines (called antiretroviral therapy or ART) can prevent transmission of HIV to your baby and protect your health. [...] - If you learn you have HIV, the sooner you start treatment the better—for your health and your baby’s health and to prevent transmitting HIV to your partner. [...] - If you have HIV and take HIV medicine as prescribed throughout your pregnancy and childbirth and give HIV medicine to your baby for 2-6 weeks after giving birth, your risk of transmitting HIV to your baby can be less than 1%.