U.S. doctors online nowAsk doctors free
Jacksonville, FL
A 38-year-old female asked:

Will symptoms of listeria appear in less than 24 hours after eating infected product? i am pregnant, not feeling well, and ate questionable cheese

2 doctor answers5 doctors weighed in
Dr. Lori Semel
Pediatrics 35 years experience
Listeria: Symptoms may begin a few days after you've eaten contaminated food, but it may take as long as two months before the first signs and symptoms of infection begin.It does not appear in less than 24 hours. I would strongly urge you to go consult with your obstetrician as listeria can stay in your system and have devastating effects on the newborn.
Dr. Christine Norton
Family Medicine 24 years experience
Unlikely : The incubation period for listeria is 3 to 70 days. Listeria is killed by cooking and pasteurization so if the cheese was made with pasteurized milk it is less likely to be contaminated with Listeria. The symptoms are fever, muscle aches, nausea, diarrhea, and neck stiffness. You should see your doctor and get checked if you are truly concerned about a possible infection and is bad in pregnancy.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Educational text
Free
Talk to a doctor
24/7 visits - just $39!
50% off with $15/month membership

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Educational text
Free
Talk to a doctor
24/7 visits - just $39!
50% off with $15/month membership
Last updated Oct 25, 2014

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.