DMPQ-What are the criteria for designating a diseases pandemic by WHO.

WHO declares the outbreak of the new coronavirus is a pandemicThis is the first pandemic since H1N1.  The coronavirus sweeping across the world is a pandemic, the World Health Organization declared today. There are now over 118,000 cases of COVID-19, the disease caused by the virus, in 114 countries around the world.

A pandemic is the worldwide spread of a new disease.An influenza pandemic occurs when a new influenza virus emerges and spreads around the world, and most people do not have immunity. Viruses that have caused past pandemics typically originated from animal influenza viruses.

Some aspects of influenza pandemics can appear similar to seasonal influenza while other characteristics may be quite different. For example, both seasonal and pandemic influenza can cause infections in all age groups, and most cases will result in self-limited illness in which the person recovers fully without treatment. However, typical seasonal influenza causes most of its deaths among the elderly while other severe cases occur most commonly in people with a variety of medical conditions.

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