Webster's New World Medical Dictionary

history
See 
history, medical.
history, developmental
An account of how and
when a child passed developmental milestones,
such as walking and talking. For adults, information
on social-emotional development may be included.
A developmental history is used primarily in the
diagnosis of developmental disorders.
history, family
An account of past and current
family structure and relationships within the family,
including medical information about family
members.
history, medical
A complete account of all past
and present medical events and problems a person
has experienced, including psychiatric illness. 
history, social
An account of a patient that puts
his or her illness or behavior in context. A social
history may include aspects of the patient’s develop-
mental, family, and medical history, as well as rele-
vant information about life events, social class, race,
religion, and occupation. 
His-Werner disease
See 
trench fever.
HIV
Human immunodeficiency virus, the cause of
AIDS. HIV is a retrovirus: It has an RNA genome and
a reverse transcriptase enzyme. Using the reverse
transcriptase, the virus uses its RNA as a template for
making complementary DNA. This DNA can then
integrate itself into the DNA of the host organism.
Also known as the AIDS virus, human lymphotropic
virus type III, lymphadenopathy-associated virus,
and lymphadenopathy virus. See also 
AIDS.
HIV infection, acute
The body’s initial reaction
to infection by human immunodeficiency virus
(HIV), a flu-like syndrome that occurs 2 to 4 weeks
after a person contracts HIV. Symptoms include
fever, sore throat, headache, skin rash, and swollen
glands (lymphadenopathy). This syndrome pre-
cedes the development of detectable antibodies to
HIV in the blood (seroconversion), which normally
takes weeks or months. When antibodies to HIV
appear in the blood, a person tests positive in the
standard ELISA test for HIV. See also 
AIDS; HIV
infection, primary.