Q. What are the possibilities of Listeria monocytogenes to colonise and proliferate in a dry plate?

Answered by
Dr. Arun R Kaushik
and medically reviewed by Dr. Nithila A
Published on Sep 22, 2019 and last reviewed on: Sep 24, 2019

Hello doctor,

Can Listeria monocytogenes colonise and proliferate on a plate that had plain pasta on it but pasta has been taken out, and plate left out for about a week at room temperature? I am 16 weeks pregnant, and when I was washing said plate, I spilled some of the dirty water from it onto a tea towel that my husband then used to dry a cup which I then drank water out of. I am wondering how likely if at all that listeria may have contaminated my cup through the tea towel.

Dr. Arun R Kaushik

Critical Care Physician Geriatrics Microbiology
#

Hello,

Welcome to icliniq.com.

I understand your concern. I suggest that you get a culture for listeria from the cloth which was used. If the cloth was dry, then the chance of the listeria to survive is less. It is difficult to predict if the water was first infected with the bacteria. Then if it would have survived for the time. Follow-up if you have any fever or symptoms.

Thank you doctor,

Is it likely for Listeria to colonize on a plate that has been dry for a week? It would have a bit of starch leftover on it from the pasta, but that is all.

Dr. Arun R Kaushik

Critical Care Physician Geriatrics Microbiology
#

Hello,

Welcome back to icliniq.com.

It is highly unlikely. These bacteria usually do not survive in dry conditions for long.

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