Food poisoning is often caused by a bacterium called ________.
Listeria Food Poisoning. Listeria is a bacterium that causes a serious infection called listeriosis. Around 300 deaths are caused by Listeria infection each year, according to estimates from a 2011 CDC report.Listeria bacteria are most commonly found in raw foods.oxoplasma Food Poisoning. Toxoplasma gondii is one of the worldâs most common parasites. It is the second leading cause of deaths attributed to foodborne illness in the United States, and the third leading cause of foodborne illness hospitalizations.