The apocalypse of zombies in the real world may end soon. This situation is not so much like the hit drama "The Walking Dead" of the American classic movie AMC, but rather like the classic movie "28 Days of Surprise" in 2002. This is the research conclusion drawn by students from the University of Leicester in the UK. They mainly use an epidemiological model to simulate the spread of infectious diseases among people. The team is based on the assumption that every zombie can find a victim every day, and there is a 90% possibility of infecting the zombie virus to each other, and these "living dead" can last for 20 days. After inputting the above parameters into the model, the researchers found that there were only a few hundred survivors in less than 100 days.
Zombie mathematics
Robert smith, a professor of mathematics at the University of Ottawa, said that the propagation speed of zombies can be calculated by a formula, that is, (bN)(S/N)Z = bSZ. The researchers tried to use mathematical tools to create a zombie diffusion model. Smith thinks that the zombie diffusion model is somewhat similar to a biological virus, where n represents the total population, z represents the number of zombies, and b represents the possibility of being infected by zombies. The results show that if zombies appear, they may rule the world.
Mat Mogk, the founder of Zombie Research Society, believes that zombies have their inherent biological characteristics. They can't fly or live forever. They will spread by biting normal people. Some movies about the spread of zombies describe the spread of zombie viruses, such as 28 Days of Surprise, Zombie Paradise and the works mentioned at the beginning of the article. Ian McKay, a virologist at the Australian Center for Infectious Diseases Research, believes that the spread of zombie viruses is similar to that of viruses infecting computer hosts, with very fast spread speed and high efficiency. Obviously, this is an extreme virus transmission event. Smith believes that when studying the zombie diffusion formula, we should pay attention to one feature, that is, the dead infected by zombies can be resurrected into zombies and continue to attack humans.
Such a diffusion model can refer to the outbreak model of AIDS, malaria and West Nile virus. Most virus models have only one nonlinear element, but there are two zombie virus models, which makes the mathematical model of zombie diffusion more sensitive. Tara Smith, a professor of infectious diseases at the University of Iowa in the United States, believes that mathematical modeling becomes more interesting when combined with zombie diffusion theory, which can make children interested in mathematics. In the field of public health, mathematical simulation can be used to predict the impact. With the acceleration of urbanization, human beings need to face the challenge of new viruses, which also reflects the public's anxiety about virus epidemic events.
Zombie brain
Like humans, the brain is the most important organ of zombies. Without it, zombies will lose their ability to act. Two neuroscientists at the University of California, San Diego and Carnegie Mellon University are curious about the operation of zombie brains. This paper is called "Do zombies dream of immortal sheep?" It is pointed out that zombies who walk slowly may have problems with their cerebellum, because the cerebellum is responsible for the coordination of movements. Some zombies lack the ability of working memory even if they are as fast as flying knives.
According to Cornell University, if you encounter a zombie epidemic in the United States, the best place to take refuge is the Rocky Mountains. Establish a disease model and study the transmission route of the virus. If the virus can spread through bites, it will spread slowly in less populated areas, and it will take several months to spread to the mountains, and the most serious is the densely populated big cities ~ so no matter where you live, you may have to flee to the mountains first!
Although zombie virus is not the most likely doomsday scenario, it is always good to be prepared. If the whole society wants to mobilize public health emergency response in time and effectively when zombies break out, it must invest more research and funds now. (New technology discovers Constantine/Wen)