Definition and Concept of Epidemics, Endemic, Sporadic and Pandemic, Screening

Criteria for Assessing the Screening Test

Simplicity: a test shoul...}

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Natural History of Disease in Man, Interactions of Agent, Host and Environment

Natural history of a disease includes:

• Pathological onset
• The presymptomati...}
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Investigation of Disease Outbreaks

Objectives of the investigation of epidemic

1. Define and research for the correct co...}
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Prognosis, Causation, Factors of Causation, Risk Factors

The cause of disease may be single or multiple. According to Koch's germ theory of dise...}

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Concept of Infectious Disease Epidemiology, Chain of Infection and Sources and Reservoir

ses of infectious disease epidemiology

1. Identification of caus...}

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Modes of Transmission and Susceptible Host

For all infections, it requires the following:

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Epidemiological Markers

Antigens of Gram-negative bacteria

"O" antigen- cell wall lipopolysaccharide antigen<...}

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