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Stages of Infectious Disease

Stages of Infectious Disease

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Stages of Infectious Disease:
  • Incubation stage
– The time between the acquisition of the pathogen and the onset of symptoms.
  • Prodrome stage
– Nonspecific symptoms, such as fever or tiredness, occur.
  • Disease-specific symptoms
– Increase rapidly
  • Recovery
– As the host immune system and/or treatments effectively reduce the number of pathogens, symptoms decrease (also called the convalescence stage).
  • Health
– Ultimately, symptoms disappear and the individual returns to health. – However, some individuals may become chronic carriers of the infectious agents or develop latent infections that can reoccur.

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