Step 1 Virus Reference

Mnemonics & Tips:

• Naked Viruses: "Give PAPP smears and CPR to a naked HEPpy hippo."
  (DNA: Papilloma, Adeno, Polyoma, Parvo / RNA: Calici, Picorna, Reo, Hepe).
• Segmented (BOAR): Bunyaviridae, Orthomyxoviridae, Arenaviridae, Reoviridae.
• Circular DNA: Papilloma, Polyoma, Hepadna.
• DNA Viruses (HHAPPPPy): Hepadna, Herpes, Adeno, Pox, Parvo, Papilloma, Polyoma.
• Exceptions:
  - All DNA are dsDNA except Parvo (ssDNA).
  - All DNA are Linear except Papilloma, Polyoma, Hepadna (Circular).
  - All RNA are ssRNA except Reo (dsRNA).
  - All Helical viruses are Enveloped.

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