Green Plumbing

Category - Water-Efficient Technology

Which of the following viruses has been found in wastewater supplies and has sickened many humans?
  1. Hepatitis A
  2. Rotavirus
  3. Norwalk Virus
  4. All of the above
Explanation
Answer: D - Each of these wastewater-borne viruses has sickened, and in some cases killed, humans. Among the sources to which the virus was traced, Hepatitis A appeared in imported strawberries, Rotavirus in water contaminated with feces, and Norwalk Virus in oysters.
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