Listeria is most likely to sicken pregnant people and their newborns, adults aged 65 or older, and people with weakened immune systems. Other people can be infected with Listeria, but they rarely become seriously ill.
Call your healthcare provider right away if you have any of these Listeria symptoms:
- Pregnant people typically experience only fever, fatigue, and muscle aches. However, Listeria infections during pregnancy can lead to miscarriage, stillbirth, premature delivery, or life-threatening infection of the newborn.
- People who are not pregnant may experience headache, stiff neck, confusion, loss of balance, and convulsions, in addition to fever and muscle aches.