Viruses — Flashcards

Flashcard 261: Which enterovirus most commonly causes meningitis? _____

Answer: Coxsackievirus

Extra: Atlas:

Flashcard 262: Coxsackie B is associated with _____

Answer: hepatitis

Flashcard 263: Poliovirus is acid-_____

Answer: stable

Flashcard 264: Negative-sense RNA viruses must **carry** their own _____ to transcribe their genome into positive-sense RNA

Answer: RNA-dependent RNA polymerase

Extra: Negative-sense RNA viruses are not 'infectious' as purified RNA because they require the virion-associated polymerase to initiate their life cycle. Negative-sense RNA viruses include: Arenaviruses, Bunyaviruses, Paramyxoviruses, Orthomyxoviruses, Filoviruses, and Rhabdoviruses (Mnemonic: Always Bring Polymerase Or Fail Replication).

Flashcard 265: Which viral genetic phenomenon is characterized by virus A and virus B exchanging genes between two chromosomes? _____

Answer: Recombination

Flashcard 266: What type of virus is HHV-6? _____

Answer: Double-stranded DNA

Flashcard 267: Viral gastroenteritis is most commonly caused by _____ and rotavirus

Answer: norovirus

Flashcard 268: What type of viruses are orthomyxoviruses? _____

Answer: Negative sense RNA

Flashcard 269: Which paramyxovirus can result in aseptic meningitis? _____

Answer: Mumps

Flashcard 270: Norovirus is associated with consumption of _____

Answer: shellfish (e.g. oysters)