Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
Understand the progression of HIV infection.
Expert Solution
Step 1
HIV (Human immunodeficiency virus) is a virus that attacks cells that help the body fight infection (immune system of the body), making a person more vulnerable to other infections and diseases. HIV is spread by contact with certain bodily fluids of a person with HIV, most commonly during unprotected sex (sex without a condom or HIV medicine), or through sharing injection needles.
The virus is transmitted through contact with infected blood, semen or vaginal fluids.
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