Europe is on alert as alarming new details about the deadly e-coli outbreak emerge.
The Centers for Disease Control says the strain responsible for the outbreak is rare and virulent.
According to the World Health Organization, 16 people have died and more than 1,600 are infected.
All of the cases except for two were people who'd recently visited northern Germany or had contact with someone who had.
As a result of that outbreak, American Airlines won't be serving salads on its flights out of Europe. The airline is replacing them with other options.
The source of the outbreak isn't known.
Many governments have imposed temporary bans on cucumbers, tomatoes and eggplants from Spain, Germany, Denmark and the Netherlands.