A nuclear accident (intentional or unintentional) can cause significant harm to those living nearby or at a distance. Harmful levels of invisible gamma radiation penetrate the body, creating not only devastating injuries but the radioactive contamination can also be spread to contaminate others. What type of transmission precaution prevents this person-to-person contamination?
Answer: Contact
Explanation:
Invisible gamma radiation penetrates the body and can be eliminated in blood, sweat, urine, and feces. Consequently, a contaminated person can contaminate others through contact with body fluids or surfaces he or she touches. Airborne transmission requires the suspension and transport on air currents beyond 3 feet and is the way in which many pathogens or toxins are transmitted. Invisible gamma rays do not fall into this category, however. Gamma radiation does not travel in a liquid, or droplet, form. Standard precautions encompass more than person-to-person contamination.
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