Pandemic Definition For Science
Learn about how pandemics arise and about pandemic preparedness and historical pandemics.
Pandemic definition for science. The term is most often used in reference to influenza. How to use pandemic in a sentence. In 2009 a new kind of influenza a virus known as h1n1 emerged in an outbreak in the united states. When does an epidemic officially become a pandemic.
A pandemic is the global outbreak of a disease. It quickly spread and was defined by the who as a pandemic based on a formal process that took into account the precise nature of the countries where an infection was diagnosed. Pandemic definition is occurring over a wide geographic area such as multiple countries or continents and typically affecting a significant proportion of the population. 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.
There are many examples in history the most recent being the covid 19 pandemic declared as such by the world health organization on march 12 2020. A widespread endemic disease with a stable number of infected people is not a pandemic. Epidemic over a large area. Overall 22 000 000 deaths were caused by this pandemic.
But a palpable sense of urgency and a lingering concern that in critical situations large randomized controlled trials are not always feasible or ethical 1 2 perpetuate the perception that when it comes to the rigors of science. Widespread endemic diseases with a stable number of infected. By august it reached persia and was in france within two more weeks. In july of 1918 the influenza pandemic hit chungking.
A pandemic is the global spread of a new disease according to the who. The global outbreak of coronavirus disease 2019 covid 19 has seen a deluge of clinical studies with hundreds registered on clinicaltrials gov 1.