BSIP VEM / SCIENCE PHOTO LIBRARY BSIP VEM / SCIENCE PHOTO LIBRARY
AIDS. Illustration of a foetus in the womb with an HIV (Human Immunodeficiency Virus) virus - the virus that causes AIDS (Acquired Immune Deficiency Syndrome). Although a mother's blood never mixes with that of her unborn child, the placenta some- times lets particles like viruses across. If a pregnant woman is HIV+ there is a substantial risk that the baby will be born infected with the AIDS virus also.
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