MCQs part 1 on Virology

These are MCQs on "Virology" for Entrance examination like CBSE NEET etc

1. All the following viruses are transmitted by respiratory routes EXCEPT ONE:

• Human papilloma virus
• Rhinovirus
• Adenovirus
• Measles virus
• VZV

2. All the following viruses are disseminated throughout the body EXCEPT ONE:

• HIV
• HBV
• Rabies virus
• Yellow fever virus
• Human papilloma virus

3. An important defense function of cytotoxic T lymphocytes in viral infection is to:

• Lyse virus infected cells
• Fragment viral nucleic acid by nucleases
• Neutralize free virus particles
• Block cell respiration
• Lyse viral capsid

4. An abortive infection is one in which:

• The infected cells are killed
• Progeny virus is not produced
• Transplacental infection of the fetus occurs
• Episodes of virus multiplication alternate with periods when no infectious virus is present and no multiplication occurs
• Cell multiplication is stopped

5. All of the following association are true EXCEPT ONE:

• EBV can cause nasopharyngeal carcinoma
• CMV causes heterophil-negative mononucleosis
• Mumps virus can cause meningitis
• Poliovirus can cause paralytic disease
• Astrovirus causes gastroenteritis only in adults

6. Each of the following diseases is associated with infection by picornaviruses EXCEPT ONE:

• Myocarditis
• Hepatitis
• Meningitis
• Mononucleosis
• Herpangina

7. Which one of the following statements concerning mumps is CORRECT?

• The testes, ovaries and pancreas can be involved
• There is no vaccine against mumps
• Passive immunization is the only means of preventing the disease
• The diagnosis is made only on clinical grounds, since the virus cannot be grown in cell culture and serologic tests are inaccurate
• Second episodes of mumps can occur, since there are 2 serotypes

8. Each of the following statements concerning HAV is correct EXCEPT ONE:

• The initial site of viral replication is the GIT
• The diagnosis is usually made by isolating the virus in cell culture
• HAV commonly causes asymptomatic infection in children
• Immunoglobulin is used to prevent the disease in exposed persons
• It is a member of the family picornaviridae

9. All the following viruses belong to the Picornaviridae EXCEPT ONE:

• Coxsackievirus group A
• Rhinoviruses
• Poliovirus
• Rabies virus
• Echovirus

10. Acute hemorrhagic conjunctivitis is caused by which of the following viruses:

• Coronovirus
• Reovirus
• Rhinovirus
• Enterovirus
• RSV

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