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Personnel who handle or come in contact with human remains are at risk of acquiring infections.
Bloodborne pathogens, infectious aerosols, or other potentially infectious materials may transmit the human immunodeficiency virus (HIV), hepatitis B and C virus (HBV, HCV), and tuberculosis, to name a few.
Graves registration personnel should receive the hepatitis B vaccine (a 3-shot series which takes 6 months to complete) in addition to the other vaccines listed in this document.
Evidence indicates that direct contact with bloodborne pathogens poses a significant hazard to personnel.
Exposure to infectious aerosols (droplets in the air which may contain infectious material) also places personnel at risk, but to a lesser degree than bloodborne pathogens.
Since a single exposure may cause infection, the best way to reduce the risk is to prevent or minimize exposures.
http://www.usariem.army.mil/