Mohammedkemal Mustefa Ame
1* 
, Mathewos Belina Woyessa
2, Kedir Mohammed
1, Wali Khan
3 , Asma Mohamed Ziyada Farah
41 Department of Veterinary Public Health, College of Veterinary Medicine, Haramaya University, Ethiopia
2 Department of Veterinary Public Health, College of Veterinary Medicine, Wollega University, Ethiopia
3 Department of Zoology, University of Malakand, Lower Dir, Pakistan
4 College of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
Abstract
Emerging infectious diseases (EIDs) are those that are either newly discovered in a community or those that are already there but are rapidly spreading geographically or becoming more frequent. Bacteria are considered to be the source of 54% of newly EIDs, and 175 pathogenic species are connected to diseases that are suspected of emerging. Emergent infectious diseases are those that have either not yet been identified and are impacting a population, or those that are currently present but are rapidly expanding to new regions or generating a high number of new cases within an existing population. Emerging diseases also include infectious diseases that once affected a region, declined, or were under control but are returning more frequently. Moreover, EIDs are infections that were formerly limited to a particular area, declined, or were under control but are now manifesting more frequently.