#1
Which of the following is a common symptom of a viral infection?
Fever
ExplanationFever is a common symptom indicating the presence of a viral infection.
#2
Which of the following diseases is caused by a coronavirus?
COVID-19
ExplanationCOVID-19 is caused by a coronavirus.
#3
Which organ is primarily affected by the Hepatitis B virus?
Liver
ExplanationThe Hepatitis B virus primarily affects the liver.
#4
What is the primary function of antiviral drugs?
To prevent viral replication
ExplanationThe primary function of antiviral drugs is to prevent viral replication.
#5
How do vaccines prevent viral infections?
By stimulating the immune system to recognize and fight viruses
ExplanationVaccines prevent viral infections by stimulating the immune system to recognize and fight viruses.
#6
What distinguishes a pandemic from an epidemic?
A pandemic is a global disease outbreak
ExplanationA pandemic is distinguished by being a global disease outbreak.
#7
What is the primary mode of transmission for the influenza virus?
Airborne droplets
ExplanationInfluenza primarily spreads through airborne droplets.
#8
Which virus is responsible for causing chickenpox?
Varicella-Zoster Virus
ExplanationVaricella-Zoster Virus causes chickenpox.
#9
How does the Hepatitis C virus primarily spread?
Through blood-to-blood contact
ExplanationHepatitis C virus primarily spreads through blood-to-blood contact.
#10
What is the term for the outer protein coat of a virus?
Capsid
ExplanationThe outer protein coat of a virus is called a capsid.
#11
What type of viral genome is found in the influenza virus?
Single-stranded RNA
ExplanationThe influenza virus has a single-stranded RNA genome.
#12
What is a distinguishing feature of viruses that differentiates them from bacteria?
Viruses require a host cell to replicate
ExplanationViruses require a host cell to replicate, unlike bacteria.
#13
What mechanism do retroviruses, such as HIV, use to replicate?
Reverse transcription of DNA from an RNA template
ExplanationRetroviruses replicate by reverse transcription of DNA from an RNA template, like HIV.
#14
What is 'viral shedding' in the context of viral infections?
The release of virus particles from a host to the environment
ExplanationViral shedding is the release of virus particles from a host to the environment.
#15
What is a viroid?
A small infectious particle composed of RNA without a protein coat
ExplanationA viroid is a small infectious particle composed of RNA without a protein coat.