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Disease Prevention- Definition, Levels, Approaches, Key …

WEBDisease prevention is a procedure through which individuals, those with risk factors for a disease or without the risk factors, are treated in order to prevent a disease from …

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Common Human Infections and Causative Agents

WEBIn this article, we will look over some common infections based on anatomic location i.e. organ/system involved along with their causative agents. Infections of the Blood …

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Epidemiology- Definition, History, Objectives, and Types

WEBObjectives of Epidemiology. to identify the etiology, or cause, of a disease and its relevant risk factors (i.e., factors that increase a person’s risk for a disease). to intervene to …

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Human Microbiome and Normal Flora Of The Human Body

WEBThrough normal everyday activities, the human body is exposed to microorganisms in the environment. Hundreds of species and countless individual microbial cells, collectively …

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Hemoglobin: Structure, Types, Functions, Diseases

WEBStructure of Hemoglobin. Hgb is a globular metalloprotein with a quaternary structure. One hemoglobin molecule is composed of four subunits; each containing one polypeptide …

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Epidemic- Definition, Causes, Types, and Response

WEBEpidemic- Definition, Causes, Types, and Response. An epidemic is the rapid spread of infectious diseases to a large number of people in a given population within a short …

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Area, Scope, and Fields of Epidemiology

WEBFields of Epidemiology . Aging epidemiology: Examines the public health impact of aging societies, and the multifactorial changes associated with aging that make health issues …

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Source of Infection and Types of Reservoirs

WEBHuman reservoir . By far the most important source or reservoir of infection for humans is the man himself. He may be a case or carrier. a. Case. A case is defined as “a person in …

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Endemic Diseases- Definition, Types, Examples, Control

WEBExamples of Endemic Diseases. Chagas Disease. About 7.6 million people are infected with Chagas disease. It is caused by a protozoan parasite, Trypanosoma cruzi. This disease …

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Hand washing steps and guidelines by WHO and CDC with video

WEBGuidelines of handwashing by the World Health Organization (WHO) The WHO recommended that when the germs are invisible, thorough hand-rubbing with …

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Macronutrients: Carbohydrates, Proteins and Fats

WEBMacronutrients include carbohydrates, proteins, and fats that help in the development of the body’s soft tissue, cell membrane, structural components of hormones and signaling of …

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Human Circulatory Circuit: Systemic and Pulmonary

WEBPulmonary Human Circulation Circuit. It is composed of the pulmonary arteries and the pulmonary veins. It serves to deliver deoxygenated blood from the heart to the lungs for …

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Veins: Definition, Structure, Types, Functions, Diseases

WEBStructure of Veins. Veins are thin-walled valves containing blood vessels. Anatomically, veins have the same three layered walls as arteries that are the tunica externa, the …

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Communicable vs Non-communicable Diseases- Definition, 17 …

WEBCommunicable diseases are also known as infectious diseases. Non-communicable diseases are also known as chronic diseases. Progression. These are more likely to be …

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Lipids: Properties, Structure, Classification, Types, Functions

WEBProperties of Lipids. Lipids may be either liquids or non-crystalline solids at room temperature. Pure fats and oils are colorless, odorless, and tasteless. They are energy …

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DNA: Properties, Structure, Composition, Types, Functions

WEBDNA is made of two helical chains that intertwine with each other to form a double helix. The most widely accepted structure of DNA is right-handed helix DNA also known as the …

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Epidemiologic Triad- Agent, Host, Environment

WEBAmong 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 …

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Microorganisms found in soil with effects and examples

WEBSoil microbiology is a branch of soil science concerned with soil-inhabiting microorganisms, their functions, and activities within the soil ecosystem.. Soil microbiology is an …

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52 Laboratory Safety Symbols, Signs, and Meanings

WEBBiological hazard symbols in the lab. Chemical hazard symbols in the lab. Physical material hazard symbols in the lab. B. Entry/Working requirement symbols in the lab. C. Different …

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