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Health Notes
HIV and AIDS

Human Immunodeficiency Virus (HIV)- A virus that attacks the ____________
system

Acquired Immune Deficiency Syndrome (AIDS)- A disease in which the
immune system of a person is _____________
o Fatal disorder that interferes with your natural ability to fight
____________ the advances state of HIV
HIV and the Human body ________________- specialized white blood cells made in bone marrow that
provide the body with immunity
o Your body contains ____________ of lymphocytes

Antibodies- proteins that help destroy ____________ in the body
o Produced by T-cells and B-cells (lymphocytes)

When HIV enters the blood, it invades certain cells of the immune system,
including _____________, which help other lymphocytes ____________ and
destroy pathogens
o The virus takes over the cells and cause them to produce new __________
of themselves
o The newly produced virus breaks out of the cells, _____________ them,
infects other cells, and the process repeats itself
*As the number of viruses increases the number of T cells ___________, the immune
system is less capable of preventing infections and cancer*

________________ Infections
o Infections that occur in individuals who do not have healthy immune
systems are unhealthy
o These infections are ______________ to treat
o The infected individual ____________ one infection after another
*Being infected with HIV does not mean that an individual has __________*
How HIV is transmitted
 HIV organism lives inside cells and body fluids
o _________
o Semen
o ________ ______________
o Breast milk
 It does not survive well in the _____ or on surfaces (ex: toilets, telephones)

Most common ways HIV is transmitted
o Sexual Intercourse
 Can be transmitted during any form of sexual intercourse
 Secretions containing HIV can enter a partner’s blood through tiny
cuts in the body
 Having an STD that causes _______ increases the risk of HIV
o Sharing Needles
 People who inject drugs and share ________ are at high risk for
contracting and spreading HIV
 Anyone who uses the same needle as someone _________ can
inject HIV directly into his or her _________
o Mother to baby
 ____________ female who is infected with HIV can pass the virus
to her baby
 Can be transmitted through the umbilical cord, birth or through
________ _________