Pandemic Definition Medical Who

A pandemic outbreak of a disease.

Pandemic definition medical who. Viruses that have caused past pandemics typically originated from animal influenza viruses. The who changed the definition of a pandemic in may 2009 ch 10 phd thesis or my book the new definition removed the following clause. 2 the classical definition includes nothing about population immunity virology or disease severity. Doshi argues cogently that the definition of pandemic influenza in 2009 was elusive but does not refer to the classical epidemiological definition of a pandemic.

An epidemic a sudden outbreak that becomes very widespread and affects a whole region a continent or the world due to a susceptible population. A pandemic may occur when a new influenza virus appears resulting in epidemics worldwide with enormous numbers of deaths and illness. An outbreak of a disease that occurs over a wide geographic area as multiple countries or continents and typically affects a significant proportion of the population. An influenza pandemic occurs when a new influenza virus emerges and spreads around the world and most people do not have immunity.

A pandemic is the worldwide spread of a new disease. Medical definition of pandemic entry 2 of 2. 1 a pandemic is defined as an epidemic occurring worldwide or over a very wide area crossing international boundaries and usually affecting a large number of people.