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Germs, Hygiene, and Infection Prevention

Germs occur in air, soil, water, and on or within the body.

Public HealthBeginner

Based on MedlinePlus en español — Germs, Hygiene, and Infection Prevention. Original educational summary, read by a medical doctor and confirmed reliable, pending formal approval. Not medical advice.

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Learning outcomes

  • Explain microorganisms and spread.
  • Explain illness and exposure opportunities.
  • Explain when hand cleaning matters.
  • Explain handwashing and respiratory etiquette.
  1. 1

    Microorganisms and spread & Illness and exposure opportunities

    5 min · includes quiz

  2. 2

    When hand cleaning matters & Handwashing and respiratory etiquette

    5 min · includes quiz