The deadly outbreak of a novel coronavirus has turned a spotlight on that question and the science of pandemics. Human migration, trade and wars helped the disease spread from China to India, Africa, and the Americas. Pandemic: Definition. ; Phase 3 is when sporadic cases or small clusters of disease are confirmed, but human-to-human transmission has either not occurred or is considered unlikely to sustain an outbreak. Epidemic, an occurrence of disease that is temporarily of high prevalence.An epidemic occurring over a wide geographical area (e.g., worldwide) is called a pandemic.The rise and decline in epidemic prevalence of an infectious disease is a probability phenomenon dependent upon transfer of an effective dose of the infectious agent from an infected individual to a susceptible one. Sporadic: When a disease occurs infrequently and irregularly. A pandemic occurs … Learn about how pandemics arise and about pandemic preparedness and … Pandemic definition, (of a disease) prevalent throughout an entire country, continent, or the whole world; epidemic over a large area. Phase 2 is the first level of threat wherein a virus is confirmed to have jumped from an animal to humans. ; Endemic: A constant presence and/or usual prevalence of a disease or infection within a geographic area. Pandemic, outbreak of infectious disease that occurs over a wide geographical area and that is of high prevalence, generally affecting a significant proportion of the world’s population over the course of several months. an epidemic of unusually large proportions, affecting most of the inhabitants of a certain area at the same time. Definition. Phase 1 is the period during which no animal viruses are reported to cause infection in humans. ... with a few cases of animal to human … [1] "An influenza pandemic occurs when a new influenza virus appears against which the human population has no immunity, resulting in several, CDC has a long history of improving public health capacity throughout the world to contain outbreaks at their source and minimize their impact. 5. — pandemic, adj., n. A disease is considered an epidemic if it spreads over an area (like an entire country) and affects many people simultaneously. classified as pandemic influenza. A pandemic is an epidemic disease that has spread across populations over vast areas such as continents or even globally. What is a pandemic? The Spanish Flu Pandemic and epidemic are related terms used to define the spread of a disease: An epidemic is the spread of a disease in a community or region over a … The COVID-19 pandemic is a serious global health threat and CDC is committed to stopping the global spread. develped by the Geography Educational National Implementation project, the five themes of geography are location, human-environment, region, place, and movement: Term. location: Definition. All in all, this pandemic lasted about 100 years (it officially ended in 1959) and claimed over 12 million people in India and China alone. According to the Centers for Disease Control and Prevention, an epidemic refers to an increase, often sudden, in the number of cases of a disease above what is normally expected in a population living in a particular area. A search of online web archives reveals that the WHO website had the erased definition dating back to at least January 2003 through to July 2008. See more. 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