PetriKey

Virus

Enterovirus group

Nonenveloped positive-sense RNA picornaviruses

EN-ter-oh-vy-rus

virusrnapositive-sensenonenvelopedpicornavirusmeningitis

High-yield clue

Nonenveloped positive-sense RNA + aseptic meningitis/hand-foot-mouth vocabulary.

Overview

A picornavirus group used to connect nonenveloped positive-sense RNA, fecal-oral spread vocabulary, aseptic meningitis, and hand-foot-mouth comparisons.

Classification

  • Nonenveloped virus
  • Positive-sense RNA
  • Picornavirus group

Lab & identification clues

  • PCR vocabulary
  • CSF viral testing concept
  • Serotype diversity

Associations

  • Aseptic meningitis vocabulary
  • Hand-foot-mouth disease term
  • Summer/fall outbreak framing

Commonly confused with

  • Rhinovirus
  • HSV
  • Varicella-zoster virus

Your notes

Original student-study summary. Sources checked: OpenStax Microbiology 2e, NCBI Bookshelf Medical Microbiology, and CDC topic pages where applicable; reviewed 2026-06. Educational only; no diagnosis, treatment, dosing, or specimen-handling guidance.

OpenStax: Microbiology 2e organism classification foundationssourceNCBI Bookshelf: Medical Microbiology organism chapterssourceCDC: CDC disease and public-health topic pagessource