what is the difference between emerging and reemerging infectious diseases?
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Emerging diseases include HIV infections, SARS, Lyme disease, Escherichia coli O157:H7 (E. coli), hantavirus, dengue fever, West Nile virus, and the Zika virus. Reemerging diseases are diseases that reappear after they have been on a significant decline.
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Deleting a virus infected file deletes the infected file as well as the virus but only if there is no other copy of the virus in your computer. Whereas quarantining is moving the virus to a safe location that's managed by the antivirus software but not deleting it or cleaning it.
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Recurrent CDI can caused by either relapse due to the original infecting strain or reinfection with a new strain. Previous studies have demonstrated that continued non-CDI antibiotic treatment and a failed immune response to C. difficile toxins A and B are risk factors for recurrent CDI (15, 20, 25).
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Causes acute gastrointestinal illness, usually with more vomiting than diarrhea, generally resolves within three days. Spreads primarily from one infected person to another, often through contaminated food, water, or environmental surfaces.
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An epidemic occurs when the communicable disease spreads from person to person and affects a large number of people. A pandemic occurs over a wide geographic area and affects a high proportion of the population.
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The biggest difference between public health and medicine is that public health deals with health from the perspective of populations, while medicine deals with health from the perspective of individuals. ... Disease prevalence is the number of individuals within a population who have a particular disease at a given time.
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Infectious Disease as Chronic Disease: Zika virus, an emerging flavivirus, as a cause of fever and rash in a traveller returning from Central America.
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The main difference between reversible and irreversible cell injury is that the reversible cell injury can return to the normal conditions by altering the homeostasis of the cell whereas the irreversible cell injury cannot return to the viable conditions as the cell has passed the point of no return.
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The difference between these two theories has to do with their ideas about how the diseases are contracted -- how people come to be sick with the disease. The miasma theory of disease held that diseases are caused by "bad" air.
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What is the main difference between acute and chronic toxicity? Incorrect! Acute toxicity appears within hours or days of an exposure, whereas chronic toxicity takes many months or years to become a recognizable clinical disease.
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However, the greatest difference between the two fields lies in their respective focuses: Public health focuses on the scientific process of preventing infectious diseases, while community health focuses more on the overall contributors to a population's physical and mental health.
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Incidence refers to the occurrence of new cases in a specific health-related state during a time period, whereas prevalence measures the proportion of subjects who are in the state at a point in time. Both measures are fundamental in epidemiological research.
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Infection refers to the presence of pathogenic microbes getting past host defenses where they enter tissues and multiply while disease refers to any deviation from health that is caused as a result of the disruption of a tissue or organ because of the presence of microbes in the tissues.
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Tuberculosis Is Fast Becoming a Global Threat. Tuberculosis is making a comeback worldwide—and is quickly becoming drug-resistant. Tuberculosis (TB), a curable disease, is rearing its ugly head again, and because it's becoming resistant to antibiotics, it's rapidly emerging as a major global threat.
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Pneumonia symptoms vs. The flu usually comes on suddenly, while pneumonia takes longer to develop and can be a complication from the flu. The flu is caused by a viral infection, while pneumonia can be caused by either a bacterial infection or viral infection. Flu symptoms include: Body aches and pains.
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Here are some few ways to tell the difference: The onset of food poisoning is typically faster than the stomach bug, since symptoms can be felt within hours. The stomach bug can take a longer time to develop. Food poisoning usually lasts for a day or two, while the stomach bug can last longer — even up to ten days.
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The World Health Organization defines it as “a sudden ecological phenomenon of sufficient magnitude to require external assistance”. An emergency, on the other hand, is a situation in which normal operations cannot continue and immediate action is required so as to prevent a disaster.