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Epidemiology of amebiasis - PowerPoint

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									    Epidemiology of amebiasis

         Dr. Nicolas Padilla
Professor of Pediatrics and Researcher
Nursing and Obstetrics School of Celaya
       University of Guanajuato
           Introduction
• Amebiasis is a worlding disease.
• Principal frequency in countries
  with a deficiency in sanitary
  conditions.
• It is more frequent in tropical
  countries.
• Poorest areas.
              Frequency
Region    Infection     Diasease      Deaths
Africa    85 millions   10 millions   10-30
                                      thousands
Asia      300 millions 20-30          25-50
                       millions       thousands
Europe    20 millions 100             Minimum
                       thousands
America   95 millions 10 millions     10-30
                                      thousands
Totals    650 millions 45-50          40-110
                       millions       thousands
              Frequency

•   10-20% of the world population.
•   Colombia and Brazil 40%.
•   Arabia 30%.
•   Mexico 27%.
      Mortality in Mexico

• 1980 23%
• 1998 < 1%
      Entamoeba histolytica

• It was described more than 100
  years ago.
• It has two forms: infectant (cyst) or
  vegetative (trophozoite).
             Transmission

•   Faeces- mounth
•   Contaminated water
•   Contaminated meals
•   Street vendors of meals
 Factors for the development of
           amebiasis
          For the ameba

• Phatogenicity of ameba, its virulence.
• Amebas pathogenic and non-pathogenic
Factors for the development of
           amebiasis
          For the host
•   Nutritional status
•   Age
•   Sex
•   Immunologic condition
 Factors for the development of
           amebiasis
      For the environment
• Management of water
• Management of waste
• Habits nutritionals and hygienics
        Chemoprophylaxis
• It is the method for to make
  prevention by chemical substance.
• It is used in Mexico, with
  albendazole, to control the diseases
  by plathelmyntes and
  nemathelmyntes.
      Chemoprophylaxis
• Quinfamide
 Studies on chemoprophylaxis
• In Mexico, administration of
  quinfamide each 3 months during
  one year, in children, had 12.5% of
  frequency of amebiasis.
            Conclusions
• The chemoprophylaxis scheme is a
  line of control of amebiasis, but also,
  we should increase the personel
  hygienic habits, to avoid eat in the
  streets and, to avoid the fecalism.

								
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