Simplify the following text for a Grade 14 native English-speaking person.
Original: Vibrio is a genus of Gram-negative bacteria possessing a curved rod , shapeseveral species of which can cause foodborne infection , usually associated with eating undercooked seafood .
Simplified: Vibrio is a genus of Gram-negative bacteria possessing a curved rod shape , several species of which can cause foodborne infection , usually associated with eating undercooked seafood .