Epidemiology of amebiasis

1
Epidemiology of amebiasis

• Dr. Nicolas Padilla
• Professor of Pediatrics and Researcher
• Nursing and Obstetrics School of Celaya
• University of Guanajuato

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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.

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Frequency
4
Frequency

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

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Mortality in Mexico

• 1980 23
• 1998 lt 1

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Entamoeba histolytica

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

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Transmission

• Faeces- mounth
• Contaminated water
• Contaminated meals
• Street vendors of meals

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Factors for the development of amebiasisFor the
ameba

• Phatogenicity of ameba, its virulence.
• Amebas pathogenic and non-pathogenic

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Factors for the development of amebiasisFor the
host

• Nutritional status
• Age
• Sex
• Immunologic condition

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Factors for the development of amebiasisFor the
environment

• Management of water
• Management of waste
• Habits nutritionals and hygienics

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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.

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Chemoprophylaxis

• Quinfamide

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Studies on chemoprophylaxis

• In Mexico, administration of quinfamide each 3
  months during one year, in children, had 12.5 of
  frequency of amebiasis.

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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.