#1
Which virus causes AIDS?
Human immunodeficiency virus (HIV)
ExplanationHIV is the virus responsible for causing Acquired Immunodeficiency Syndrome (AIDS).
#2
What is the primary mode of transmission of HIV?
Sharing needles
ExplanationSharing needles is a significant mode of transmitting HIV, especially among intravenous drug users.
#3
Which of the following fluids can transmit HIV?
Blood
ExplanationHIV can be transmitted through blood, making it important to avoid blood-to-blood contact.
#4
What is the most common initial symptom of an HIV infection?
Fever
ExplanationFever is a common initial symptom of HIV infection, resembling flu-like symptoms.
#5
What is the approximate global HIV prevalence among adults aged 15-49?
Around 2%
ExplanationApproximately 2% of adults aged 15-49 globally are living with HIV.
#6
Which cells does HIV primarily target in the human body?
T cells
ExplanationHIV primarily targets T cells, a key component of the immune system.
#7
What does AIDS stand for?
Acquired Immunodeficiency Syndrome
ExplanationAIDS stands for Acquired Immunodeficiency Syndrome, a condition where the immune system is severely compromised.
#8
Which region of the world is most affected by the HIV/AIDS epidemic?
Sub-Saharan Africa
ExplanationSub-Saharan Africa is disproportionately affected by the HIV/AIDS epidemic, with high prevalence rates.
#9
What is the term for the period during which an individual has been infected with HIV but does not yet have symptoms?
Incubation period
ExplanationThe incubation period is the time between HIV infection and the onset of symptoms.
#10
What is the name of the protein on the surface of HIV that binds to the CD4 receptor on host cells?
Envelope glycoprotein
ExplanationThe Envelope glycoprotein on the surface of HIV binds to the CD4 receptor on host cells, facilitating viral entry.
#11
Which type of antiretroviral drug interferes with HIV's ability to replicate within the host cell?
Nucleoside reverse transcriptase inhibitors (NRTIs)
ExplanationNRTIs interfere with HIV replication by inhibiting reverse transcriptase, a crucial enzyme.
#12
Which of the following is NOT a method of preventing the transmission of HIV?
Sharing needles
ExplanationSharing needles is a risky behavior that increases the likelihood of HIV transmission and is not a preventive measure.
#13
What is the term for the process by which HIV integrates its genetic material into the DNA of the host cell?
Integration
ExplanationIntegration is the process by which HIV incorporates its genetic material into the host cell's DNA, allowing viral replication.
#14
What is the term for the stage of HIV infection when the virus is replicating rapidly and the immune system is severely damaged?
AIDS
ExplanationAIDS is the stage of HIV infection characterized by rapid viral replication and severe damage to the immune system.
#15
What is the term for the period after HIV infection when an individual may experience flu-like symptoms?
Acute retroviral syndrome
ExplanationThe period after HIV infection, characterized by flu-like symptoms, is referred to as Acute Retroviral Syndrome.