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.
Germs that live in human blood and can cause disease in humans are called bloodborne pathogens. The most common and dangerous germs spread through blood in the hospital are: 1  Hepatitis B virus (HBV) and hepatitis C virus (HCV). 2  These viruses cause infections and liver damage. 3  HIV (human immunodeficiency virus).