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.
Confidence votes 1. no not all, blood-borne pathogens are typically found in the blood stream and any bodily fluid that can contain blood can contain a blood borne pathogen. these include urine, feces, saliva, sperm, vaginal secretions, and even tears.
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).