Where Does Genetics Belong In The Epidemiological Triangle?

What are epidemiological factors?

1: Epidemiologic Factors Events, characteristics, or other definable entities that have the potential to bring about a change in a health condition or other defined outcome..

What are the 3 main elements of descriptive epidemiology?

In descriptive epidemiology, we organize and summarize data according to time, place, and person. These three characteristics are sometimes called the epidemiologic variables.

What is the agent in the epidemiologic triangle?

The Agent—“What” The agent is the cause of the disease. When studying the epidemiology of most infectious diseases, the agent is a microbe—an organism too small to be seen with the naked eye. Disease-causing microbes are bacteria, virus, fungi, and protozoa (a type of parasite).

What are the three components of the epidemiology triangle quizlet?

The epidemiological Triangle model includes three key elements: the agent, host, and environment.

What is the definition of epidemiology?

By definition, epidemiology is the study (scientific, systematic, and data-driven) of the distribution (frequency, pattern) and determinants (causes, risk factors) of health-related states and events (not just diseases) in specified populations (neighborhood, school, city, state, country, global).

What is the public health triad?

The public health triad (or simply, the triad) describes the in- teractions among humans, animals, and the environment using. health-related consequences.

What are the 5 W’s of epidemiology?

The difference is that epidemiologists tend to use synonyms for the 5 W’s: diagnosis or health event (what), person (who), place (where), time (when), and causes, risk factors, and modes of transmission (why/how).

What is a host in infectious disease?

See Report of a Disease) 12. Host—A person or other living animal, including birds and arthropods, that affords subsistence or lodgment to an infectious agent under natural (as opposed to experimental) conditions.

What are the predisposing factors of disease?

Key PointsSome predisposing factors of contracting infectious diseases can be anatomical, genetic, general and disease specific.Climate and weather, and other environmental factors that are affected by them, can also predispose people to infectious agents.More items…•

What are the 3 major types of epidemiological studies?

Three major types of epidemiologic studies are cohort, case-control, and cross-sectional studies (study designs are discussed in more detail in IOM, 2000). A cohort, or longitudinal, study follows a defined group over time.

What is the epidemic triangle?

The Epidemiologic Triangle, sometimes referred to as the Epidemiologic Triad, is a tool that scientists use for addressing the three components that contribute to the spread of disease: an external agent, a susceptible host and an environment that brings the agent and host together.

Which study design is best for rare diseases?

Case-control studies are particularly efficient for rare diseases because they begin by identifying a sufficient number of diseased people (or people have some “outcome” of interest) to enable you to do an analysis that tests associations.

What is the role of epidemiology quizlet?

The study of disease in groups or populations through the collection of data and information, to identify patterns and causes. Used by governments and health-related organisations to obtain a picture of the health status of a population. You just studied 6 terms!

Why are epidemiological measures useful?

The essence of epidemiology is to measure disease occurrence and make comparisons between population groups. The current section introduces the commonly used measures that help our understanding of the distribution of disease in a given population.

What is an agent Factor?

A factor is a type of agent who sells goods owned by another, called a principal. The factor engages more frequently in the sale of merchandise than the purchase of goods. A factor is distinguished from a mere agent in that a factor must have possession of the principal’s property, while an agent need not.

What are the agents of communicable diseases?

Communicable diseases are caused by infectious agents that can be transmitted to susceptible individuals from an infected person, or from other animals, objects or the environment. Infectious agents include helminths, protozoa, bacteria, viruses and fungi.

What causes Ebola?

The exact cause of EVD is unknown. Scientists believe that it is animal-borne and most likely comes from bats, which transmit the Ebola virus to other animals and humans. There is no proof that mosquitos or other insects can transmit the virus. Once infected, a person can spread the virus to other people.

What are the three components of the epidemiological triangle?

Among the simplest of these is the epidemiologic triad or triangle, the traditional model for infectious disease. The triad consists of an external agent, a susceptible host, and an environment that brings the host and agent together.

Which is the most powerful epidemiological study?

Randomized, controlled clinical trials are the most powerful designs possible in medical research, but they are often expensive and time-consuming.

What is the agent of Ebola?

The Ebola virus is a member of the family filoviridae and the order mononegavirales and is the causative agent of Ebola Hemorrhagic Fever (Ebola HF). Ebola is severe and often fatal among both humans and nonhuman primates with mortality rates reaching as high as 90% in some outbreaks.

What is the host agent environment triangle?

The classical epidemiological triangle of host-agent-environment describes how individuals become ill. Disease occurs when an outside agent (vector) capable of causing disease or injury meets a host that is vulnerable to the agent. This happens in an environment that allows the agent and host to interact.