What diseases look like

这是一篇关于What diseases look like的思维导图，主要内容有Symdrom、severity、Development、epidemiology terms。

What diseases look like?

• Symdrom
  • Symptom
    • Subjective changes
  • sign
    • objective changes
• severity
  • lasting
    • acute
      • sever, short
    • chronic
      • less sever, long
    • latent
      • virus
  • individual extent
    • local
    • systematic
    • focal
      • local to other
• Development
  • Predisposing factor
    • increase risk of disease
  • Incubation period
    • contagious, no syndrom
  • Prodromal period
  • Period of illness
  • Period of decline
  • Period of convalescence
    • contagious, no symdrom
• epidemiology terms
  • Incidence
    • the frequency of new diagnosed cases of a disease in a period of time
      • percentage of healthy people have the disease in a time period
  • Prevalence
    • Prevalence: the frequency of all cases (old and new) of a disease in a given time.
      • percentage of people have the disease in a given time
  • Sporadic
    • occasionally
  • Endemic
    • constantlly
  • Epidemic
    • outbreak locally
  • pandemic
    • outbreak worldwide