Page 50 - 78 glossary of hivaids-related terms_opt

Erythrocyte
Red blood cell. The primary function of erythrocytes is to carry
oxygen throughout the body.

Etiology
The branch of medical science that studies causes of disease. Such
E causes are called etiologic agents. For example, HIV is the etiologic
agent of AIDS.

Exclusion/Inclusion Criteria
See: Inclusion/Exclusion Criteria

Expanded Access
Refers to any of the Food and Drug Administration (FDA)
procedures that allow distribution of experimental drugs to people
who are failing currently available treatments and are unable to
participate in ongoing clinical trials. These procedures include
compassionate, treatment, or emergency use.
See Also: Compassionate Use

Experimental Drug
See: Investigational Drug

Extensively Drug-Resistant Tuberculosis (XDR-TB)
A relatively rare type of tuberculosis that is resistant to almost all
anti-tuberculosis drugs, including the two best first-line drugs
and the best second-line drugs. XDR-TB is of special concern for
people infected with HIV or other conditions that can weaken the
immune system.

48 HIV/AIDS Glossary