Ch. 15 Infection and Human Immunodeficiency Virus Infection (Unit 3)

Question 1

Infection occurs when

Answer 1

A pathogen invades the body, beings to multiply, and produces disease, usually causing harm to the host.

Question 2

Localized infection

Answer 2

Is limited to a small area

Question 3

Disseminated infection

Answer 3

Spread to areas of the body beyond the initial site of infection

Question 4

Systemic infections

Answer 4

Spread extensively throughout the body, often via the blood.

Question 5

Human Immunodeficiency Virus (HIV)

Answer 5

Retrovirus that causes immunosuppression.

Question 6

HIV can be transmitted as a result of contact with infected

Answer 6

Blood, semen, vaginal secretions, or breast milk

Question 7

Transmission of HIV occurs through

Answer 7

sexual intercourse with an infected partner; exposure to HIV-infected blood or blood products; and perinatal transmission during pregnancy, at delivery, or through breastfeeding.

Question 8

HIV-infected individuals can transmit HIV to others within

Answer 8

a few day after becoming infected.

Question 9

Variables that influence whether infection will be established after an exposure include

Answer 9

1) Duration and frequency of contact with the organism; 2) volume, virulence, and concentration of the organism; and 3) host immune status