The fossil record tells us what types, kinds, and numbers of organisms may have lived in the past, as well as what they ate, what age they lived in,.
Handwashing is one of the most important (and easiest) practices used to prevent transmission of bloodborne pathogens. Hands or other exposed skin should be thoroughly washed as soon as possible following an exposure incident. Use soft, antibacterial soap, if possible.
Unbroken skin forms an impervious barrier against bloodborne pathogens. However, infected blood can enter your system through: Open sores Cuts Abrasions Acne Any sort of damaged or broken skin such as sunburn or blisters; Bloodborne pathogens may also be transmitted through the mucous membranes of the Eyes Nose Mouth