HIV Life Cycle Quiz

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Which method of control relies on the availability and effectiveness of testing?

Identification (correct)

Isolation

Chlorination of water supplies

Immunization

What is the primary method of control when immunization is not available?

Chlorination of water supplies

Use of indicators of disease

Identification

Isolation (correct)

Which disease has a high death rate and is transmitted to people by flea bites?

Ebola

Bubonic plague (correct)

Smallpox

Tuberculosis

Which of the following best describes an endemic communicable disease?

A disease that has a small number of cases continually present in the population Signup and view all the answers

What is the term used to describe a communicable disease that is concurrently affecting large numbers of people in a population?

Epidemic Signup and view all the answers

Which of the following is an example of indirect transmission of a communicable disease?

Contaminated food or water Signup and view all the answers

What is the term used to describe a global, world-wide outbreak of a communicable disease across several countries or continents?

Pandemic Signup and view all the answers

Which of the following is a common symptom of Chlamydia infection in women?

Painful urination Signup and view all the answers

How is Chlamydia diagnosed?

Fluorescence microscopy Signup and view all the answers

What is the most common route of HIV transmission?

Sharing contaminated needles Signup and view all the answers

What happens when HIV infects a cell?

The cell's machinery is hijacked by the virus Signup and view all the answers

Which enzyme converts (+)RNA into DNA during the HIV life cycle?

Reverse transcriptase Signup and view all the answers

What is the primary interaction between HIV and host cells?

Interaction with CD4 receptors Signup and view all the answers

Which cells are the main target of HIV infection?

CD4+ T cells Signup and view all the answers

At what CD4 T cell count is an individual described as having AIDS?

Below 200 cells/µL Signup and view all the answers

Which major complication can occur in females with gonorrhea?

Tubal scarring and sterility Signup and view all the answers

Which part of the body can be affected by disseminated gonococcal infection?

Joints Signup and view all the answers

What is the most reliable diagnostic test for herpes simplex virus infection?

Viral cultures from vesicles or ulcers Signup and view all the answers

What is a major complication of herpes infection in pregnant women?

Spread from infected mother to infant Signup and view all the answers

Which stage of syphilis is characterized by late destructive lesions in internal organs?

Tertiary syphilis Signup and view all the answers

Which stage of syphilis is characterized by systemic infection with skin rash and enlarged lymph nodes?

Secondary syphilis Signup and view all the answers

Which stage of syphilis is characterized by the presence of shallow ulcers on mucous membranes of the oral cavity and genital tract?

Primary syphilis Signup and view all the answers

Which stage of syphilis is not generally communicable and may appear up to 20 years after the initial infection?

Tertiary syphilis Signup and view all the answers

Which cells are targeted by the HIV virus for destruction?

CD4 T cells Signup and view all the answers

What is the role of CD4 T cells in the immune response?

They regulate the immune response Signup and view all the answers

Which cells are responsible for controlling HIV infection by destroying infected cells?

CD8 T cells Signup and view all the answers

What happens to CD4 T cell counts during HIV infection?

They decrease Signup and view all the answers

What is the consequence of a decrease in CD4 T cell counts in HIV disease?

Loss of viral control Signup and view all the answers

Which cells are responsible for inhibiting virus production and promoting immune activation in HIV infection?