Which statement about human immunodeficiency virus (HIV) and acquired immune deficiency syndrome (AIDS) is true?
a. Everyone with AIDS has HIV infection but not everyone with HIV infection has AIDS.
b. Everyone with HIV infection eventually dies of it because the disease cannot be cured.
c. With successful antiretroviral therapy, HIV-infected patients become HIV-antibody negative.
d. When HIV disease becomes AIDS, the infection is in the blood and treatment must be given intravenously.
Question 2
How are viral infections different from bacterial infections?
a. Bacterial infections can be spread from one person to another, whereas viral infections cannot be spread directly.
b. Bacterial infections can be cured by treatment with some anti-infective drugs, whereas viral infections are not cured by anti-infective therapy.
c. Viruses only cause disease in a person who is immunocompromised, whereas bacteria can cause disease even among immunocompetent people.
d. Viruses are the less mature form of a bacterium, so there is essentially no difference between viral infections and bacterial infections.
The hemispheres of the human brain.
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Steps in the humoral and cell-mediated immune responses.
Major Structures of the Human Brain
Annotation of a DNA sequence containing part of the human beta-globin gene
Example of a genetic pedigree of the autosomal dominant disease Marfan syndrome