MICROPARA LEC

• Pathogenesis


  The development of a disease
• Infection


  The invasion and multiplication of microorganisms in body tissues
• Infectious disease


  A disease caused by the invasion of the body by pathogenic microorganisms
• 4 stages of infection

  1. Incubation period

  2. Prodromal period

  3. Period of illness

  4. Convalescent period
• Localized infection


  An infection confined to a specific area of the body
• Systemic infection


  An infection that spreads throughout the body
• Acute disease


  Rapid onset of the disease, and rapid recovery
• Give the Examples of an Acute diseases


  • measles
  • mumps
  • influenza
• Chronic disease


  Slow onset of disease, last a long time
• Give the example of an Chronic diseases


  • tuberculosis
  • leprosy
  • syphilis
• Subacute disease


  More sudden than chronic but less sudden than acute
• Give example of an Subacute diseases


  • subacute bacterial endocarditis (SBE)
• Signs


  Observable evidence of disease
• Symptoms


  Subjective feelings of the patient
• Gonorrhea


  • Usually symptomatic in male patients, but asymptomatic in female patients
• Trichomoniasis


  • Usually symptomatic in female patients, but asymptomatic in male patients
• Latent infection


  An infection where the pathogen remains dormant within the host
• Herpes


  • The virus remains dormant within cells of the nervous system until some type of stress acts as a trigger
• Virulence


  The degree of pathogenicity of a microorganism
• Virulence factors


  Characteristics of a pathogen that contribute to its ability to cause disease