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POULTRY FARM BIOSECURITY S.T.Moubarak Cairo University Faculty Of Veterinary Medicine WHAT IS BIOSECURITY? Biosecurity is not just an impressive word pulled out of a dictionary.…

Documents Communicable disease › Disease transmitted from one host to another In order for disease to...

Slide 1 Slide 2 Slide 3  Communicable disease › Disease transmitted from one host to another  In order for disease to spread, a chain of events must occur › Pathogen…

Documents Epidemiology Chapter 20. 20.1 Principles of Epidemiology Communicable disease Disease transmitted...

Slide 1 Epidemiology Chapter 20 Slide 2 20.1 Principles of Epidemiology Communicable disease Disease transmitted from one host to another In order for disease to spread,…

Documents Intermediate methods in observational epidemiology 2008 Confounding - I.

Slide 1 Intermediate methods in observational epidemiology 2008 Confounding - I Slide 2 800200500 80100 50250 180300 Mortality 18% 30% Deaths Intervention No intervention…

Documents Epidemiology Chapter 20. Principles of Epidemiology Communicable disease Disease transmitted from...

Epidemiology Chapter 20 Principles of Epidemiology Communicable disease Disease transmitted from one host to another In order for disease to spread a chain of events must…

Documents Intermediate methods in observational epidemiology 2008

80 100 OBSERVATION VS. EXPERIMENT Confounding variable Less common in the group that undergoes the intervention Increased mortality (âoutcomeâ) (DUAL) ASSOCIATION OF CONFOUNDING…

Documents KEY CONCEPT 31.1 Germs cause many diseases in humans.

PowerPoint Presentation KEY CONCEPT 31.1 Germs cause many diseases in humans. 31.1 Pathogens and Human Illness 1 Germ theory states that microscopic particles cause certain…