Virology — MCQs August 22, 2025 by u930973931_answers 50 Score: 0 Attempted: 0/50 Subscribe 1. The genetic material of influenza virus is: (A) Double-stranded DNA (B) Single-stranded DNA (C) Single-stranded RNA (D) Double-stranded RNA 2. The causative agent of AIDS is: (A) Hepatitis B virus (B) Retrovirus (HIV) (C) Herpes simplex virus (D) Cytomegalovirus 3. Rabies virus belongs to the family: (A) Rhabdoviridae (B) Retroviridae (C) Herpesviridae (D) Orthomyxoviridae 4. Which virus causes smallpox? (A) Poxvirus (B) Parvovirus (C) Herpesvirus (D) Orthomyxovirus 5. Which hepatitis virus is a DNA virus? (A) Hepatitis A (B) Hepatitis B (C) Hepatitis C (D) Hepatitis E 6. The common cold is most often caused by: (A) Rhinovirus (B) Influenza virus (C) Coronavirus (D) Adenovirus 7. Polio is caused by: (A) Orthomyxovirus (B) Picornavirus (C) Retrovirus (D) Reovirus 8. Dengue fever is transmitted by: (A) Anopheles mosquito (B) Aedes aegypti mosquito (C) Culex mosquito (D) Sandfly 9. Which virus has reverse transcriptase enzyme? (A) Herpesvirus (B) Retrovirus (C) Adenovirus (D) Poxvirus 10. The vector of Yellow fever is: (A) Anopheles mosquito (B) Aedes mosquito (C) Culex mosquito (D) Sandfly 11. The causative agent of measles is: (A) Paramyxovirus (B) Adenovirus (C) Picornavirus (D) Herpesvirus 12. Koplik spots are diagnostic of: (A) Rubella (B) Measles (C) Chickenpox (D) Mumps 13. German measles is caused by: (A) Rubella virus (B) Rubeola virus (C) Parvovirus (D) Adenovirus 14. Which virus causes mumps? (A) Paramyxovirus (B) Herpesvirus (C) Orthomyxovirus (D) Adenovirus 15. Herpes simplex virus type 1 usually causes: (A) Genital herpes (B) Oral lesions (C) Chickenpox (D) Hepatitis 16. The causative agent of chickenpox is: (A) Epstein-Barr virus (B) Varicella-zoster virus (C) Cytomegalovirus (D) Herpes simplex virus 17. Shingles is caused by reactivation of: (A) HSV-2 (B) Varicella-zoster virus (C) EBV (D) Cytomegalovirus 18. Which virus causes infectious mononucleosis? (A) Cytomegalovirus (B) Epstein-Barr virus (C) Adenovirus (D) Herpes simplex virus 19. Hepatitis C virus belongs to the family: (A) Hepadnaviridae (B) Flaviviridae (C) Picornaviridae (D) Reoviridae 20. Which hepatitis virus is transmitted mainly by contaminated water? (A) Hepatitis A and E (B) Hepatitis B (C) Hepatitis C (D) Hepatitis D 21. Which virus is oncogenic? (A) Rabies virus (B) Human papillomavirus (C) Influenza virus (D) Rotavirus 22. Human papillomavirus commonly causes: (A) Cervical cancer (B) Hepatitis (C) Measles (D) Mumps 23. Which virus causes Burkitt’s lymphoma? (A) HIV (B) Epstein-Barr virus (C) Hepatitis B (D) CMV 24. The main vector of Japanese encephalitis is: (A) Culex mosquito (B) Aedes mosquito (C) Anopheles mosquito (D) Sandfly 25. Rotavirus is a major cause of: (A) Pneumonia in children (B) Gastroenteritis in children (C) Hepatitis in children (D) Measles in children 26. Which virus causes SARS? (A) Coronavirus (B) Adenovirus (C) Influenza virus (D) Paramyxovirus 27. Middle East Respiratory Syndrome (MERS) is caused by: (A) Orthomyxovirus (B) Coronavirus (C) Paramyxovirus (D) Adenovirus 28. Which virus is called the “slow virus” causing subacute sclerosing panencephalitis (SSPE)? (A) HIV (B) Measles virus (C) JC virus (D) HSV-1 29. The genetic material of retroviruses is: (A) Double-stranded DNA (B) Single-stranded RNA (C) Double-stranded RNA (D) Single-stranded DNA 30. Which viral hepatitis has no chronic carrier state? (A) Hepatitis A (B) Hepatitis B (C) Hepatitis C (D) Hepatitis D 31. Norovirus commonly causes: (A) Respiratory illness (B) Epidemic viral gastroenteritis (C) Hepatitis (D) CNS infection 32. JC virus is associated with: (A) Subacute sclerosing panencephalitis (B) Progressive multifocal leukoencephalopathy (C) Rabies (D) Polio 33. Which virus is bullet-shaped? (A) Influenza virus (B) Rabies virus (C) Polio virus (D) Dengue virus 34. The vector of Zika virus is: (A) Culex mosquito (B) Aedes mosquito (C) Sandfly (D) Blackfly 35. Which hepatitis virus is defective and requires HBV for replication? (A) Hepatitis C (B) Hepatitis D (C) Hepatitis E (D) Hepatitis A 36. Which virus is associated with Kaposi’s sarcoma? (A) HIV (B) HHV-8 (C) EBV (D) CMV 37. Which virus causes hemorrhagic fever with renal syndrome? (A) Hantavirus (B) Ebola virus (C) Dengue virus (D) Marburg virus 38. Ebola virus belongs to which family? (A) Rhabdoviridae (B) Filoviridae (C) Paramyxoviridae (D) Retroviridae 39. Which virus is associated with congenital infections and “blueberry muffin baby”? (A) Cytomegalovirus (B) Rubella virus (C) Varicella virus (D) Parvovirus B19 40. Parvovirus B19 causes: (A) Erythema infectiosum (fifth disease) (B) Measles (C) Rubella (D) Roseola 41. Which herpesvirus causes cytomegalic inclusion disease? (A) HSV-1 (B) HSV-2 (C) CMV (D) EBV 42. Which virus has a segmented RNA genome? (A) Influenza virus (B) Rabies virus (C) Adenovirus (D) HSV 43. Which virus is known as the “cruise ship virus”? (A) Rotavirus (B) Norovirus (C) Adenovirus (D) Coronavirus 44. Which virus causes acute hemorrhagic conjunctivitis? (A) Adenovirus (B) Enterovirus 70 (C) Herpesvirus (D) Measles virus 45. Which virus is associated with orchitis? (A) Measles (B) Mumps (C) Rubella (D) Polio 46. Which virus causes rabies? (A) Lyssavirus (B) Rhabdovirus (C) Both A and B (D) None 47. Which hepatitis virus is transmitted by blood transfusion most commonly? (A) Hepatitis A (B) Hepatitis B (C) Hepatitis C (D) Hepatitis E 48. Which virus is the smallest DNA virus? (A) Parvovirus (B) Adenovirus (C) Herpesvirus (D) Poxvirus 49. Which virus is the largest DNA virus? (A) Adenovirus (B) Poxvirus (C) Herpesvirus (D) Hepadnavirus 50. Which virus causes warts? (A) Adenovirus (B) HPV (C) EBV (D) HSV