re: "As a rule, through water. 710% of water pipes in Russia contain fecal coliforms, so it follows that the risk of infection is high for those who drink tap water"
No wonder they are slugging down Vodka for breakfast!
One place in Ukraine I lived in had running water only 1-2 hours once or twice a week. We'd fill up the bath tub as a cistern, and heat up big pots on the stove and take sponge bathes. Waste water was to flush the commode.