Members of the genus Listeria are fastidious bacteria with respect to their nutritional requirements, and several minimal media described in the literature fail to support growth of all Listeria spp. Furthermore, strict limitation by a single nutrient, e.g., the carbon source, has not been demonstrated for any of the published minimal media. This is an important prerequisite for defined studies...

Contagious keratoconjunctivitis is a rather common disease in Norwegian sheep. Since the knowledge of its aetiology is limited, the present study was performed to determine the microorganisms involved. Local veterinarians throughout the country collected conjunctival swabs from both sick (n = 43) and healthy (n = 42) sheep on 15 farms with outbreaks of ovine keratoconjunctivitis, and further fr...

Background: Listeria monocytogenes is one of the most important food-borne bacteria causing septicemia, meningitis and encephalitis in humans. The objective of this study was to evaluate the occurrence and antibiotic resistance of the bacterium in retail minced beef in Ahvaz, South-West of Iran. Methods: In this survey, 150 samples of minced beef were randomly obtained from retail butcheries i...

Listeriosis is an emerging zoonotic disease. Listeria monocytogenes uncommon cause of illness in general population, however, some high risk groups including neonates, pregnant women, elderly persons, immunosuppressed transplant recipients and others with impaired cell mediated immunity, it important life threatening bacteremia meningoencephalitis. 18 times more common pregnancy (12/100,000) th...

A DNA probe specific for Listeria monocytogenes was isolated from a beta-hemolytic recombinant clone of an L. monocytogenes gene bank. It was labeled with horseradish peroxidase and used in a direct colony hybridization method on hydrophobic grid-membrane filters for the detection of the organism. Following color development of the chromogen, a commercial counter (HGMF Interpreter) was able to ...

The purpose of this study was to examine the microbiological quality and consumer safety frozen black mussels purchased from four different markets (A, B, C, D) in İzmir Province Turkey. A total 36 mussel packages, which contained approximately 50 each, were markets. They not only examined for mesophilic, psychrotrophic, coliform fecal bacteria count but also investigated pathogenic such as Esc...

Estimates of foodborne illness can be used to direct food safety policy and interventions. We used data from active and passive surveillance and other sources to estimate that each year 31 major pathogens acquired in the United States caused 9.4 million episodes of foodborne illness (90% credible interval [CrI] 6.6-12.7 million), 55,961 hospitalizations (90% CrI 39,534-75,741), and 1,351 deaths...