From what we have seen in the course materials, the emergence or cross-over of HIV into human populations is best understood as resulting from random chance.Group of answer choicesTrueFalse

HIV most likely originated on which continent?Multiple choice question.AfricaSouth AmericaAsiaNorth America

From what we have seen and read, the actual origins of communicable diseases (such as HIV) have little connection to patterns of human habitation and social organization.Group of answer choicesTrueFalse

HIV strains may differ by 10% within one person and by 35% in people around the globe. This is due toMultiple Choiceboth cellular and antibody-mediated responses.the fact that HIV inserts its genome into the host genome.HIV's high rate of mutation.the fact that HIV targets T cells.the fact that most people do not die from HIV infection.

Why do scientists consider HIV to be an emerging virus?

Worldwide, most new HIV infections come from __________ sex?Group of answer choicesheterosexualhomosexual