An emerging disease is a disease of which the true incidence increases in a significant way in a
given population, of a given area and during a given period, in comparison with the current
epidemiological situation of this disease. This definition can be used as well for human diseases
than for plant or animal ones.

Climate and Environmental factors are major contributors to many emerging and re-emerging infectious diseases.
Although the pathways and extent of the environmental role are not always fully known