Page 20 - 78 glossary of hivaids-related terms_opt

warning is one of the strongest warnings issued by the Food and
Drug Administration (FDA) and is reserved for drugs with significant
B
risks or monitoring requirements.
See Also: Package Insert

Blip
A temporary increase in viral load in someone who previously had
undetectable virus and who later returns to having undetectable
virus. The viral load during a blip is usually low (50 to 500 copies/mL).
See Also: Undetectable Viral Load (UDVL)

Blood-Brain Barrier
A selective obstacle between circulating blood and brain tissues
that prevents damaging substances from reaching the brain.
Certain substances easily cross the blood-brain barrier; others are
completely blocked.

B Lymphocyte
Also known as a B cell. Infection-fighting white blood cell that
develops in the bone marrow and spleen. B lymphocytes produce
antibodies. In people with HIV, the ability of B lymphocytes to do
their job may be damaged.
See Also: Antibody

Body Habitus Changes
Abnormal changes in the body’s physical characteristics.
See Also: Wasting Syndrome
Lipoatrophy
Lipohypertrophy

Bone Marrow Suppression
See: Myelosuppression

Booster
An additional dose or doses of a vaccine given after the initial dose
to enhance the immune response to the vaccine. Also used as a
term to describe a medicine given to enhance another medicine,

18 HIV/AIDS Glossary