Polio, or poliomyelitis, is a highly contagious viral infection that can lead to paralysis, breathing problems, or even death. The term poliomyelitis is from the Greek polios poliÃ³s meaning, grey myelos myelÃ³s referencing the, spinal-cord and itis. Meaning inflammation polio can be classified as either symptomatic. or asymptomatic
1 Prions are proteins that can force conformational changes in natural proteins and seem to cause disease (kuru, new variant Creutzfeldt-Jakob disease, and fatal familial insomnia).  A virus is an obligate intracellular pathogen (meaning that it must live within the cells of its host in order to reproduce).
Definition of Obligate Carnivore: An obligate carnivore is an animal that by its genetic makeup must eat the tissue of other animals in order to thrive.Obligate carnivores may eat other foods, such as vegetables, grains, or fruit, but they must eat meat as the main source of their nutrients.Meat includes, but is not limited to beef, chicken, lamb, turkey, and fish. However, not all carnivores are obligate (obligatory) carnivores.Definition of Carnivores:efinition of Obligate Carnivore: An obligate carnivore is an animal that by its genetic makeup must eat the tissue of other animals in order to thrive.