Twenty-six people have been sickened, with nine of them being hospitalized, due to a salmonella outbreak linked to cucumbers sold across the country. Now some cucumbers are being recalled.

U.S. health officials are investigating a new outbreak of salmonella illnesses tied to a Florida grower whose tainted cucumbers were linked to more than 550 illnesses last year.

Salmonella is a bacterium that can cause serious and sometimes fatal infections in young children, older people, and others with weakened immune systems, according to the FDA.