Converse of object

• contain: These cheeses are made with mold and they can contain listeria, a type of bacteria that could harm your unborn baby.

Modifies a noun

• bacterium: Two germs of this kind are the listeria bacteria and the toxoplasmosis parasite.

• monocytogene: More detailed guidance was provided for ready-to-eat food, shelf life and listeria monocytogenes criteria, and minced meat sampling.

• infection: The normal symptoms of listeria infection are not those of food poisoning.

Preposition: in

• cheese: They had in mind the consequences of previous food scares in respect of listeria in cheese and salmonella in eggs.