Epidemiology What is Epidemiology? Etiology.

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Presentation transcript:

Epidemiology What is Epidemiology? Etiology

Monitoring an outbreak Incidence Prevalence

Epidemiological Terms Morbidity Mortality

Diseases in Populations Endemic Epidemic Pandemic Sporadic

Disease Spread Common Source Outbreak Propagated Epidemic

Epidemiologic Studies Descriptive Analytical Experimental

Infection Reservoirs Human Animal (Zoonoses) Non-living

Microbe Spread Portals of Entry Skin Mucus membrane Parenteral route Portals of Exit Vary for each organ system Bodily fluids and fecal material carry microbes

Modes of Disease Transmission Contact Vehicles Vectors

Problems in Disease Transmission Disease Cycles Herd Immunity

Controlling Disease Transmission Isolation Quarantine Immunization Vector Control

Public Health Organizations Center for Disease Control (CDC) World Health Organization (WHO)

Notifiable Diseases Definition: Infectious diseases harmful to community health; must be reported to a physician 65 diseases as of 2006

Nosocomial Infection Risks Susceptibility Virulence Transmission chain

Bioterrorism Airborne human pathogens Toxins Agricultural bioterrorism