Biology ยท General Awareness
Viral Diseases and Immunity
807 Questions
Viral diseases and immunity cover the structure, transmission, and diagnosis of viruses like HIV. Questions focus on disease pathways, immune responses, and prevention. Strong knowledge here provides an edge in biology scoring.
HIV and AIDS structureVirus transmission methodsImmune system deficiencyPathogen risk groupsMedical diagnosis methods
Viral Diseases and Immunity Questions
What is the most common oral manifestation of HIV infection?
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Candidiasis
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Kaposi's Sarcoma
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Hairy Leukoplakia
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Necrotizing Ulcerative Gingivitis
A
Correct answer
Explanation
Candidiasis is a fungal infection caused by Candida species, which is commonly seen in HIV-infected individuals due to impaired immune function.
Which systemic disease is associated with the development of oral hairy leukoplakia?
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HIV Infection
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Epstein-Barr Virus
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Human Papillomavirus
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Cytomegalovirus
A
Correct answer
Explanation
Oral hairy leukoplakia is a distinctive white lesion that occurs on the lateral borders of the tongue in HIV-infected individuals.
What is the name of the virus that causes AIDS?
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HIV
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HPV
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Hepatitis B
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Hepatitis C
A
Correct answer
Explanation
HIV is the virus that causes AIDS (acquired immunodeficiency syndrome).
Which of the following drugs is used to treat HIV/AIDS and can cause ototoxicity?
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Zidovudine
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Lamivudine
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Efavirenz
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Nevirapine
D
Correct answer
Explanation
Nevirapine is an antiretroviral drug used to treat HIV/AIDS that can cause ototoxicity, particularly at high doses or with prolonged use. It can damage the hair cells in the inner ear, leading to hearing loss and balance problems.
Which of these is a viral disease that causes Feline Leukemia?
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Feline Immunodeficiency Virus
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Feline Herpesvirus
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Feline Calicivirus
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Feline Leukemia Virus
D
Correct answer
Explanation
Feline Leukemia is caused by the Feline Leukemia Virus, a retrovirus that can lead to various health issues in cats, including anemia, immunosuppression, and increased risk of developing certain types of cancer.
Which of the following is NOT a type of virus?
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DNA virus
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RNA virus
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Retrovirus
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Prion
D
Correct answer
Explanation
Prions are not viruses because they do not contain nucleic acid.
What is the most common sexually transmitted infection (STI) worldwide?
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Chlamydia
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Gonorrhea
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Syphilis
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HIV/AIDS
A
Correct answer
Explanation
Chlamydia is the most common STI worldwide, with an estimated 131 million new cases each year.
Which of the following is a risk factor for tuberculosis?
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HIV infection
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Weak immune system
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Close contact with an infected person
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All of the above
D
Correct answer
Explanation
HIV infection, weak immune system, and close contact with an infected person are all risk factors for tuberculosis.
Which of the following diseases is caused by a virus that is transmitted through contact with blood?
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HIV/AIDS
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Hepatitis B
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Hepatitis C
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All of the above
D
Correct answer
Explanation
HIV/AIDS, hepatitis B, and hepatitis C are all caused by viruses that are transmitted through contact with blood.
Which of the following is an example of a virus?
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HIV
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Influenza virus
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Hepatitis B virus
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Yeast
A
Correct answer
Explanation
HIV is an example of a virus, a type of acellular microorganism.
What is the primary mode of transmission for HIV?
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Direct contact with an infected person's blood or bodily fluids
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Inhalation of contaminated droplets
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Ingestion of contaminated food or water
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Contact with contaminated surfaces
A
Correct answer
Explanation
HIV is primarily transmitted through direct contact with an infected person's blood or bodily fluids, such as during unprotected sex, sharing needles, or receiving blood transfusions.
Which of the following is an example of a sexually transmitted infection (STI)?
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Influenza
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Measles
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HIV
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Common cold
C
Correct answer
Explanation
HIV is a sexually transmitted infection (STI), meaning it is spread through sexual contact with an infected person.
What is the most common cause of death among people living with HIV/AIDS?
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Tuberculosis
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Pneumonia
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Diarrhea
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Malaria
A
Correct answer
Explanation
Tuberculosis is the most common cause of death among people living with HIV/AIDS, accounting for an estimated 30% of all deaths.
What is the most common type of musculoskeletal pain in people with HIV/AIDS?
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Back pain
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Joint pain
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Muscle pain
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Neck pain
C
Correct answer
Explanation
Muscle pain is the most common type of musculoskeletal pain in people with HIV/AIDS, often caused by the virus itself or its treatments.
Which religion is often associated with a higher risk of HIV/AIDS?
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Catholicism
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Protestantism
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Judaism
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Islam
A
Correct answer
Explanation
Catholics are more likely to have multiple sexual partners and to engage in unprotected sex, which may contribute to a higher risk of HIV/AIDS.