Both Hepatitis B and HIV/AIDS pose more risk in occupational health and safety. They are contagious disease which have impacted differently on the welfare of the workforce and hence influence occupational hazard and safety. Both are viral disease which means they are highly contagious and difficult to cure. The viruses that cause these diseases are major concerns for most workers as they have already shown their impact on the workforce (Goetsch, 2004). They can lead to decreased productivity of the workforce especially when most workers have contacted both diseases. This become more serious in healthcare industry where workers are exposed to body fluids like blood and other with risk of needle sticks which can become major transmitters of these infections. Although AIDS has been feared more than Hepatitis B, research evidence shows that Hepatitis B poses more risk than HIV/AIDS. This is due to the fact that Hepatitis B is 1000 times contagious compared to HIV/AIDS.