Endemic - Definition


An endemic is the constant presence of a disease in a limited geographical area. It differs from the term epidemic, which is the occurrence of an infectious and contagious disease which expands rapidly within a certain population, but disappears, and the term pandemic, which is a widespread outbreak. Thus, in some foreign countries where there is an endemic, a vaccination against certain diseases is required before visiting them. For example, it is advisable to be vaccinated against yellow fever before visiting Africa or South America, or to take a preventive treatment against malaria in the tropics. People living in contact with these diseases are generally immune, but its presence remains constantly contaminating part of the population.
Published by Jeff. Latest update on November 26, 2013 at 12:52 PM by Jeff.
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