THE FACTORS AND SEQUENCE OF DISEASE DEVELOPMENT IN HUMAN POPULATION
The sequence of development of disease in a defined human population/community is usually characterized by a number of factors and these include: CLICK HERE TO […]
Epidemiology
Natural History and Spectrum of Disease
Natural history of disease refers to the progression of a disease process in an individual over time, in the absence of treatment. For example, untreated […]
Epidemic Disease Occurrence
Level of disease The amount of a particular disease that is usually present in a community is referred to as the baseline or endemic level […]
Core Epidemiologic Functions
In the mid-1980s, five major tasks of epidemiology in public health practice were identified. These major tasks of epidemiology in public health practice include: Public […]
COMMUNICABLE DISEASES
Communicable (infectious) diseases are diseases that are contagious. That is, they are infections or diseases that can be transferred or passed on from one person […]
NOSOCOMIAL INFECTIONS
Nosocomial infections are defined as hospital-acquired infections (i.e., infections or diseases acquired by patients few hours after hospitalization). They can also be referred to as […]
Concepts of Disease Occurrence in human population
A critical premise of epidemiology is that disease and other health events do not occur randomly in a population, but are more likely to occur […]
Chain of Infection in human population
The traditional epidemiologic triad model holds that infectious diseases result from the interaction of agent, host, and environment (Figure 1). This implies that, for a […]
CONTROL AND PREVENTION OF ZOONOTIC INFECTIONS
Zoonotic infections are a menace to human health and they are of global public health concern. The best method of controlling any form of zoonoses […]
MEASUREMENT OF DISEASE OCCURRENCE IN A POPULATION
Statistically, the measures and/or determination of disease occurrence in a given population are usually expressed practically as rates or fractions which are stated as per […]