CSPAN3 In July 4, 2024
Virus that caused the covid pandemic. Host what is the scientific definition of a spillover . Guest it is the incident when a disease pathogen, for instance a virus, passes from its nonhuman host into its first human but them. Viruses can only live in cellular creatures, can only replicate in animals, plants or some other kind of cellular creature. When a new virus appears in humans, it had to come from some other living creature, almost certainly an animal, probably a mammal or bird. When the virus passes from the nonhuman animal into its first human, that is the moment of spillover. Host har...