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A medical dictionary definition of pandemic is "an epidemic occurring on a scale that crosses international boundaries, usually affecting people on a worldwide scale". [14] A disease or condition is not a pandemic merely because it is widespread or kills many people; it must also be infectious.
For a given epidemic or pandemic, the average of its estimated death toll range is used for ranking. If the death toll averages of two or more epidemics or pandemics are equal, then the smaller the range, the higher the rank. For the historical records of major changes in the world population, see world population. [3]
Difference between outbreak, endemic, epidemic and pandemic. In epidemiology, an outbreak is a sudden increase in occurrences of a disease when cases are in excess of normal expectancy for the location or season. It may affect a small and localized group or impact upon thousands of people across an entire continent.
COVID-19 will never go away, but the pandemic will be over when the disease becomes 'endemic.' Here's what that means. What's the difference between 'pandemic' and 'endemic'?
For example, some areas may have a sudden spike in flu cases when the flu is prevalent. Epidemic and pandemic are just two of the words used frequently in news stories about the disease. "It boils ...
For example, in meningococcal infections, an attack rate in excess of 15 cases per 100,000 people for two consecutive weeks is considered an epidemic. Epidemics of infectious disease are generally caused by several factors including a change in the ecology of the host population (e.g., increased stress or increase in the density of a vector ...
Endemic is a frequently misunderstood and misused word outside the realm of epidemiology. Endemic does not mean mild, or that COVID-19 must become a less hazardous disease. The severity of endemic disease would be dependent on various factors, including the evolution of the virus, population immunity, and vaccine development and rollout. [2] [4 ...
The coronavirus is on everyone’s minds. As an epidemiologist, I find it interesting to hear people using technical terms – like quarantine or super spreader or reproductive number – that my ...