Zoonoses are infectious diseases transmitted between animals and humans or in advanced stages from humans to humans. It can also be transmitted from humans to animals, when this happens it is called reverse zoonosis. Emerging zoonoses are newly recognized or recently evolving infectious diseases while reemergence zoonoses have occurred previously but more recently have shown an increase in incidence or expansion into a new geographic, host, or vector range. The concept of “emerging diseases” developed as health scientists documented and sought to explain the apparent sharp increase in the number of major new infectious diseases over the past two decades (Bengis et al., 2004). Zoonosis can be transmitted in several ways: 1) Viral, where some of the best known are: HIV, Ebola virus, Hantavirus, rabies, Hendra virus, Nipah virus, Menangle virus infection, West Nile virus infection, acute respiratory syndrome severe, avian influenza infection and Monkeypoxvirus infection. 2) Bacterial: Lyme borreliosis, Ehrlichiosis, Bovine tuberculosis (Mycobacterium bovis), Brucella, Tularemia, Plague and Leptospirosis. 3) Parasites: Cysticercosis/Taeniasis, Rhematodosis, Echinococcosis/Hydatidosis, Toxoplasmosis and Trichinellosis. 4) Dermatophytosis and sporotrichosis Zooonosis has been an unknown threat to mankind since ancient times, when sanitary conditions were not a problem and the consumption of wild meat was widespread. Zoonotic-related diseases began to become a real problem in society when agriculture began. People lived in small groups and rarely had contact with different tribes. Everything changed when planting began on one site, people began to flock to small towns that quickly became cities. Once a popular pathogen......center of paper......vel (Bengis et al., 2004). Trade in exotic animals; livestock transport (Greger, 2007). Although there are four forms of zoonosis, two of them are much more widespread and open to contraction. The first is viral, since transmission through the air is much faster and faster. Zoonotic viral infection can become a real problem if well established in the area and, even worse, if adapted for human-to-human transmission. That said, if left untreated, it could become an endemic problem in some regions or populations. And if not properly controlled, it could turn into a pandemic situation that spreads across the country and neighboring counties or even across the world. The second is bacteria, which do not spread as quickly as viral ones but still have a significant impact on animal and human populations. May cause food and waterborne contamination.