Run Date: JULâ 17â2002. Population Density. 2000 U. S. Census By Block Group. 0 6 12 Miles. Lewis County, Washington. This map was compiled by Lewis County Geographic Information Services. The base map was developed by the Washington State Department of Natural.
Food poisoning is a general term for health problems arising from eating contaminated food. Food may be contaminated by bacteria, viruses, environmental toxins, or toxins present within the food itself, such as the poisons in some mushrooms or certain seafood.
When Food Poisoning Is Really Due to Poison. Food poisoning is usually caused by bacteria, but ingesting poisonous foods -- such as certain mushrooms or shellfish, or eating seafood harvested from contaminated water -- can cause similar symptoms. These forms of food poisoning are an emergency, and you need treatment immediately.