Chain of Infection

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Across
  1. 3. Non-intact skin, mucous membranes, GU tract, GI tract or respiratory tract
  2. 4. Most fragile of the links of the chain
Down
  1. 1. An individuals degree of resistance to pathogens
  2. 2. Places where microorganisms can survive, multiply,and await transfer to a susceptible host
  3. 3. Skin and mucous membranes, respiratory tract, GI tract, reproductive tract and blood
  4. 5. A host is no longer considered susceptible