Virology — Flashcards

Flashcard 151: Which virus is a risk factor for squamous cell carcinoma?

Answer: Human Papilloma Virus (HPV)

Flashcard 152: Are enveloped viruses sensitive or resistant to heat?_____

Answer: Heat labile

Flashcard 153: Type _____ molluscum contagiosum virus is more common in children

Answer: I

Flashcard 154: _____ virus shows a bowl of spaghetti appearance

Answer: Ebola

Flashcard 155: The **_____ period** is defined as the interval from the disassembly (uncoating) of the parental virus until the appearance of the first newly synthesized progeny virions.

Answer: Eclipse period

Flashcard 156: Which subfamily of Herpesviridae includes CMV?

Answer: Betaherpesvirinae

Extra: Subfamilies of Herpesviridae: - **Alphaherpesvirinae**: HSV-1, HSV-2, VZV - **Betaherpesvirinae**: CMV, HHV-6, HHV-7 - **Gammaherpesvirinae**: EBV, HHV-8 (KSHV)

Flashcard 157: Ebola virus is highly virulent and requires maximum containment facilities (Biosafety Level _____) for laboratory work.

Answer: 4

Flashcard 158: The 3 Non-cultivable viruses are _____

Answer: rotavirus, norwalk virus and molluscum contagiosum

Flashcard 159: Ebola virus can remain in semen for up to _____ months

Answer: 18 months

Extra: Recent studies and guidelines (following the 2014-2016 West Africa outbreak) have shown that Ebola virus can persist in the semen of male survivors for up to 18 months. WHO recommends that male survivors of EVD should practice safe sex and good hygiene for 12 months from onset of symptoms or until their semen tests negative twice for Ebola virus.

Flashcard 160: _____ exhibit genetic reassortment similar to that of the influenza virus

Answer: Rotavirus