Biology is usually the first science high school students are taught because it has less of a focus on math than other science subjects, so freshman have time to develop their math skills before moving on to more math-focused sciences.
HIV can be transmitted from an HIV-positive woman to her child either during pregnancy, or during labour and delivery, or by breastfeeding.In Europe and the USA, about 15 to 20% of babies born to HIV-positive women who are not taking anti-HIV drugs are infected.IV can be transmitted from an HIV-positive woman to her child either during pregnancy, or during labour and delivery, or by breastfeeding.
If you have HIV antibodies, then you have been infected with HIV. (The only exception to this applies to infants born to HIV-infected mothers; infants can receive HIV antibodies from their infected mothers that stay in their system for as long as 18 months.) The HIV test does not indicate whether you have AIDS, how long you have been infected, or how sick you might be.