Human population growth serves as an important model for population ecologists, and is one of the most important environmental issues of the twenty-first century.
Fluids that Spread Bloodborne Pathogens. The transmission of bloodborne pathogens from one person to another occurs through the transfer of infected body fluids. Common body fluids which can transmit pathogens include: blood. cerebral spinal fluid. semen. vaginal secretions.
If you encounter any of the above, report it to your supervisor. 1  Bloodborne pathogens are bacteria and viruses that are transmitted by contact with human blood and other potentially infectious materials (such as semen, vaginal secretions) from an infected person.