date:Nov 21, 2018
water usually comes from sources like private wells or drinking straight from a body of water that has been contaminated. If you're getting your drinking or cooking water from a source that could possibly be contaminated, there are ultraviolet water-treatment systems that can kill the bacteria, or in a pinch, boiling the water for at least one minute will also kill contaminants.
Beef
Earlier this year, 7 tons of ground beef were recalled because of E. coli contamination. These bacteria commonl