Characterization of Listeria monocytogenes from food and food-related settings

Quendera A. P., . and Varela C., . and Barreto A. S., . and Semedo-Lemsaddek T., . Characterization of Listeria monocytogenes from food and food-related settings. pp. 909-912. ISSN 2231-7546

Listeriosis is a serious public health concern due to its high fatality rates. The present investigation screened for the occurrence of Listeria monocytogenes in food and food-related environments by analyzing samples from a cheese making factory a slaughterhouse and a supermarket. Among the eighty-seven samples analyzed thirty-four isolates were recovered and subsequently evaluated regarding genomic diversity antibiotic susceptibility and virulence. Twenty-one L. monocytogenes were allocated to serogroup 1/2a-3a ten assigned to serogroup 4b-4e-4ab and three to serogroup 1/2c-3c. Results obtained also detected the presence of L. monocytogenes isolates resistant to two clinically relevant antibiotics for the treatment of listeriosis ampicillin and penicillin. Overall data gathered disclosed the occurrence of listeria isolates with high pathogenicity potential at all very distinct sampling sites reinforcing the need for an effective surveillance network designed for detecting the presence of L. monocytogenes in food products and food processing environments.

Full text available from: Official URL: http://www.ifrj.upm.edu.my/23%20(02)%202016/(65).p...

Abstract

Listeriosis is a serious public health concern due to its high fatality rates. The present investigation screened for the occurrence of Listeria monocytogenes in food and food-related environments by analyzing samples from a cheese making factory a slaughterhouse and a supermarket. Among the eighty-seven samples analyzed thirty-four isolates were recovered and subsequently evaluated regarding genomic diversity antibiotic susceptibility and virulence. Twenty-one L. monocytogenes were allocated to serogroup 1/2a-3a ten assigned to serogroup 4b-4e-4ab and three to serogroup 1/2c-3c. Results obtained also detected the presence of L. monocytogenes isolates resistant to two clinically relevant antibiotics for the treatment of listeriosis ampicillin and penicillin. Overall data gathered disclosed the occurrence of listeria isolates with high pathogenicity potential at all very distinct sampling sites reinforcing the need for an effective surveillance network designed for detecting the presence of L. monocytogenes in food products and food processing environments.

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Item Type:	Article
AGROVOC Term:	Listeria monocytogenes
AGROVOC Term:	Listeriosis
AGROVOC Term:	Foodborne diseases
AGROVOC Term:	Pathogens
AGROVOC Term:	Virulence
AGROVOC Term:	Antibiotic resistance
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:27
URI:	http://webagris.upm.edu.my/id/eprint/22680

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