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1.
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FAQ042
What happens during puberty?
When puberty starts, your brain sends signals to certain parts of the body to start growing and changing. These signals are called hormones. Hormones make your body chan...
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March 2013
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2.
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FAQ073
What is human papillomavirus (HPV)?
Human papillomavirus (HPV) is a virus that can be passed from person to person through skin-to-skin contact. More than 100 types of HPV have been found. About 30 ...
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February 2013
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3.
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FAQ113
What is human immunodeficiency virus (HIV)?
Human immunodeficiency virus (HIV) is the virus that causes acquired immunodeficiency syndrome (AIDS).
How do you get HIV?
HIV enters the bloodstream ...
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December 2012
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