Health Risks From Dead Bodies - Real Risks

Real Risks

Contamination of water supplies by unburied bodies, burial sites, or temporary storage sites may result in the spread of gastroenteritis from normal intestinal contents. According to a PAHO article on the Infectious Disease Risks From Dead Bodies Following Natural Disasters:

There is little evidence of microbiological contamination of groundwater from burial. Where dead bodies have contaminated water supplies, gastroenteritis has been the most notable problem, although communities will rarely use a water supply where they know it to be contaminated by dead bodies. Microorganisms involved in the decay process (putrefaction) are not pathogenic.

To those in close contact with the dead, such as rescue workers, there is a health risk from chronic infectious diseases which those killed may have been suffering from and which spread by direct contact, including hepatitis B and hepatitis C, HIV, enteric intestinal pathogens, tuberculosis, cholera and others.

The substances cadaverine and putrescine are produced during the decomposition of animal (including human) bodies, and both give off a foul odor. They are toxic if massive doses are ingested (2 g per kg of body weight of pure putrescine in rats, a larger dose for cadaverine), causing adverse effects. If these figures are assumed to apply to humans, a 60 kg (132 lb) person would be significantly affected by 6/37 times 120 g = 20 grams (0.7 oz) of pure putrescine. (The 6/37 is the allometric conversion for rats to humans based on body surface area.) There would be no effects at all for a tenth of that dose. By way of comparison the similar substance spermine, found in semen, is over 3 times as toxic.

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