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.
Viruses carried by blood are known as bloodborne pathogens (disease producing microorganisms found in the blood). Many school personnel come in contact with blood and other bodily fluids when at work â whether in the classroom, on the playground, in the cafeteria, on the playing field or on the school bus.