First, we must assume that all blood, vomit, saliva is all contaminated or infectious disease and we can be exposed. We must always wear protective gear, wash our hands and equipment and use the correct colored disposal containers. 

HBV and HIV are serious diseases as well as other disease that may occur for now following protocol on PPE, disposing and basic handwashing. This is very important to learn to keep yourself safe from exposure and contact with any type of bodily fluid. 

Also, would like to point out that the course also reminds you that the is others at risk, you must clean and disinfect all areas you may have touched to keep others safety as well as your own.