Symptoms can include:
- muscle aches
Listeriosis can also cause serious illness such as meningitis or blood infection, but these symptoms are relatively uncommon. Serious illness is more common in:
- Pregnant women and newborns
- Those with weakened immune systems
- Older adults or seniors
Listeriosis can also cause miscarriage or stillbirth, premature delivery in pregnant women and illness in the newborn.
Symptoms usually start 1-14 days after exposure to Listeria in non-pregnant individuals. In pregnant women, it can take up to 4 weeks.