Thermo Scientific™ MacConkey Agar Medium

Description

• Detect and enumerate coliform organisms, including E
• coli , while isolating and detecting Salmonella and Shigella spp
• in both pathological and food specimens using Thermo Scientific™ MacConkey Agar
• Urinary tract infections, bacteremia, meningitis, and diarrheal disease are the most frequent clinical syndromes associated with Escherichia coli
• Escherichia coli O157:H7 is associated with hemorrhagic colitis and hemolytic-uremic syndrome (HUS)
• Escherichia coli is an aerobic, gram-negative bacillus most frequently isolated from the intestines of humans and animals
• As a result, it is used as an indicator of fecal contamination in water sources
• This pathogen readily grows on a variety of culture media including MacConkey Agar
• Salmonella and Shigella are major causes of bacterial enteric illness
• Transmission occurs via the fecal-oral route, person-to-person contact, or by the ingestion of contaminated food or water
• A relatively small number of organisms ingested is capable of causing symptomatic infection
• While multidrug resistant Shigellae are prevalent, a multidrug resistant strain of Salmonella typhimurium (DT104) emerged in 1985 that is resistant to five antibiotics
• Salmonella and Shigella are aerobic, gram-negative, oxidase-negative bacilli
• Some Salmonella and all Shigella are nonmotile
• These organisms grow on standard media, such as MacConkey Agar, SS Agar, and XLD Agar
• Enrichment broths should also be used when culturing for these organisms to allow for maximum recovery
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