| A | B |
|---|
| Evolution | A change in the frequency of alleles over time |
| Selection | The reason (usually) that allele frequencies change. The mechanism, the driving force, etc |
| Eukaryotes | Organisms with a haploid/diploid lifecycle - like you |
| Serological Status | Take blood and remove red blood cells, you’ve got plasma and liquid red blood cells are in Can take that stuff and see what kinds of diseases you have or been exposed to |
| Serology | The science that deals with the properties and reactions of serums, especially blood serum |
| Zoonotic Pathogens | Diseases you get from animals like rabies |
| First Period of Emergence | Human (and Human ancestor) populations were very small. Few uninfected individuals in small interacting populations –Human viruses that can persist in infected individuals are favored. Example Herpes Viruses. Humans will have also occasionally contracted diseases from other animals. Zoonotic pathogens. Often little or no human-to-human transfer. Zoonotic Pathogens are diseases you get from animals like rabies |
| Second Perid Larger Populations | Human populations began to increase in size, eventually allowing for inter-human transmission as a means of survival for viruses that can’t persist in a single individual. A virus can persist in a population even if it can’t survive for long in an individual. It just needs to keep infecting new people. |
| The Third Period | The ‘Age of Exploration’ starting 15th century when ships from Europe began to travel between continents. Movements of populations to a new place brings their diseases with them introducing new diseases to the new land. European explores carried viruses already adapted to human-human transmission to the Americas, where this continents' original inhabitants contracted the viruses. Coincidentally, the susceptibility of the these individuals to the foreign viruses worked to the explores’ advantage |
