Zoonotic disease emergence is a very complex process that can be influenced by many factors including political, ecological, and biological factors. It often occurs in stages with multiple spillover events, which is then followed by small outbreaks in populations. After the animal infects a person, it the virus or bacteria has the potential to adapt, allowing human-to-human transmission to occur. According to the NCBI bookshelf, the initial phases of emergence was driven by bush meat, which is meat from non-domesticated animals. It is therefore, the primary driver of its emergence. Besides hunting, increased urbanization in the 20^th century and road expansion drove the transmission of zoonotic interaction. Close congested areas have always been a breeding ground of infectious diseases. Food and animal production has also had epidemiological consequences due to genetic modification. Human intervention is not always under control, which leads to the risk of zoonotic infection. When these food items are shipped off, this risks transmitting diseases internationally. Human movement decides food shipment has significantly impacted are animal and human health. Not only are travelers at risk for contracting diseases, but they can also act as a ”vector” for delivering infectious zoonotic diseases to different regions. This for example is the main reason for the SARS epidemic. Migration isn’t everything, however. The urbanization of civilization acts as a nesting ground for zoonotic infections. For example, the black plague. Urbanization has also implemented the use of canals and dams for transportation, which provides a breeding ground for mosquitoes and other insects. One popular example of a disease transmitted by mosquitoes is malaria, and ticks transmit Lyme’s disease. We as a species are more vulnerable than ever for contracting zoonotic infections, due to a combination of migration, urbanization, and genetically modified foods. Before the invention of technology used to get around the world in a matter of hours, diseases were more controlled. Now, with people being able to take planes from the United States to China in a matter of hours, a pandemic can occurs within a number of days. During World War I, the reason the 1918 virus killed close to 40 million people in a year was because of the rapid movement of troops from all major continents. Soldiers were bringing the diseases to and from Europe, which is the main reason why a quarter of the United States got infected, along with one fifth of the rest of the world. While the black plague was also catastrophic, it took the disease four years to take roughly 70 million lives. This was because they lacked the technology to move people form place to place within hours. It started in Asia and did not make it to Europe until over a year after the epidemic started.