Table 1.

Terminologies adopted by ERAIZDA model for classifying infectious and zoonotic diseases

Terminology	Description
Infection type
Infectious (ID)	A disease caused by transmissible agents that can be spread directly or indirectly from one animal to another.
Zoonotic (IZD)	A disease caused by transmissible agents that can naturally be transmitted from animals to humans or humans to animals.
Zoonotic potential (IZP)	A disease caused by transmissible agents with a potential of becoming zoonotic but the importance of zoonotic transmission not fully known.
Disease frequency
Endemic	A disease that occurs in a population with predictable regularity. The events are clustered in space but not in time.
Sporadic	A disease that occurs at irregular intervals in a few places; scattered or isolated
Epidemic/Epizootic	A disease that occurs in a population in excess of its normally expected frequency of occurrence. The events are clustered in time and space.
Pandemic	An epidemic of infectious disease that has spread through large populations across a large area covering ether multiple continents or the world
Disease Typology
Type I	Diseases that occur in both developed and developing countries, with large numbers of vulnerable populations in each
Type II	Diseases that occur in both developed and developing countries, but with a substantial proportion of the cases in developing countries
Type III	Diseases that overwhelmingly or exclusively occur in developing countries