Many viruses are brought in by human and animal feces and urine, plant material, insects and rodents that make the sewers their home, but then they proliferate.
Blog Post
Jun
16
Posted on 06/16/2016 at 01:00 PM
Many viruses are brought in by human and animal feces and urine, plant material, insects and rodents that make the sewers their home, but then they proliferate.
