Emerging antibiotic resistance in Listeria

January 24, 2013
Credit: sarosiek99 C.C

Malaysian researchers have revealed the presence of multidrug-resistant strains of Listeria monocytogenes in frozen burger patties taken from supermarkets and other retail shops in Malaysia. The research was published in Pertanika Journal of Tropical Agricultural Science.

A recent publication by W.C. Wong and colleagues in the Pertanika Journal of Tropical Agricultural Science revealed the presence of multidrug- of Listeria monocytogenes in frozen burger patties taken from supermarkets and other retail shops in Malaysia.

The results also suggested that the overall incidence of in L. monocytogenes is relatively low, and that most of the isolated from food are susceptible to antibiotics commonly used in veterinary and human therapy.

Often found in raw foods, L. monocytogenes can cause listeriosis when ingested. Symptoms may range from gastrointestinal upset to headaches, fever and, in severe cases, and/or blood poisoning. Those at highest risk include pregnant women, newborns and the elderly, as well as people with .

Early diagnosis of listeriosis increases the likelihood of applying appropriate before serious consequences occur. The most commonly used antibiotics for treating Listeria infections are ampicillin, penicillin, trimethoprim, tetracycline, erythromycin and gentamicin.

In this study, researchers examined the susceptibility of L. monocytogenes isolated from raw beef, chicken and vegetarian patties to 11 different antibiotics. Thirteen out of 41 bacteria samples or isolates were not resistant to any of the antibiotics, while 28 were resistant to at least one. Moreover, 19 out of 41 isolates showed resistance to at least two antibiotics. The most common form of antibiotic resistance was tetracycline resistance, followed by erythromycin resistance. However, none of the 41 isolates were resistant to imipenem or gentamicin.

Antibiotic-resistant L. monocytogenes strains were first reported in 1988. The spread of antibiotic-resistant bacteria is accelerating worldwide, partly due to the over-prescription of drugs in clinical settings and the heavy use of antibiotics as growth promoters in livestock husbandry.

The authors recommend the continuous monitoring of antimicrobial resistance in L. monoctyogenes to assure the ongoing effectiveness of listeriosis treatment.

Explore further: Roads pave the way for the spread of superbugs

More information: Wong et al. Antibiogram Pattern among Cultures of Listeria monocytogenes isolated from Frozen Burger Patties in Malaysia, JTAS Vol. 35 (4) Nov. 2012. www.pertanika.upm.edu.my/Perta … 20Page%20793-804.pdf

Related Stories

Roads pave the way for the spread of superbugs

September 29, 2011
Antibiotic resistant E. coli was much more prevalent in villages situated along roads than in rural villages located away from roads, which suggests that roads play a major role in the spread or containment of antibiotic ...

Long-term use of antibiotic to treat acne not associated with increased bacterial resistance

April 11, 2011
The prolonged use of tetracycline antibiotics commonly used to treat acne was associated with a reduced prevalence of StaphylococcuS. aureus bacteria and was not associated with increased resistance to the tetracycline antibiotics, ...

Antibiotic resistant bacteria proliferate in agricultural soils

March 20, 2012
Infectious diseases kill roughly 13 million people worldwide, annually, a toll that continues to rise, aided and abetted by resistance genes. Now a study, published in the March Antimicrobial Agents and Chemotherapy finds ...

'Resuscitating' antibiotics to overcome drug resistance

March 28, 2012
Combining common antibiotics with additional compounds could make previously resistant bacteria more susceptible to the same antibiotics. 'Resuscitation' of existing antibiotics has the potential to make infections caused ...

Recommended for you

Exploring how herpes simplex virus changes when passed between family members

October 22, 2017
A new study explores how herpes simplex virus might change when passed from one individual to another, information that may prove useful in future development of therapeutics and vaccines. This rare glimpse into a transmission ...

Pneumonia vaccine under development provides 'most comprehensive coverage' to date, alleviates antimicrobial concerns

October 20, 2017
In 2004, pneumonia killed more than 2 million children worldwide, according to the World Health Organization. By 2015, the number was less than 1 million.

Newly discovered viral marker could help predict flu severity in infected patients

October 20, 2017
Flu viruses contain defective genetic material that may activate the immune system in infected patients, and new research published in PLOS Pathogens suggests that lower levels of these molecules could increase flu severity.

H7N9 influenza is both lethal and transmissible in animal model for flu

October 19, 2017
In 2013, an influenza virus that had never before been detected began circulating among poultry in China. It caused several waves of human infection and in late 2016, the number of people to become sick from the H7N9 virus ...

Flu simulations suggest pandemics more likely in spring, early summer

October 19, 2017
New statistical simulations suggest that Northern Hemisphere flu pandemics are most likely to emerge in late spring or early summer at the tail end of the normal flu season, according to a new study published in PLOS Computational ...

New insights into herpes virus could inform vaccine development

October 18, 2017
A team of scientists has discovered new insights into the mechanisms of Epstein-Barr virus (EBV) infection, as well as two antibodies that block the virus' entry into cells. The findings, published in Proceedings of the National ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.