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  2. Quellung reaction - Wikipedia

    en.wikipedia.org/wiki/Quellung_reaction

    Quellung is the German word for "swelling" and describes the microscopic appearance of pneumococcal or other bacterial capsules after their polysaccharide antigen has combined with a specific antibody. The antibody usually comes from serum taken from an immunized laboratory animal. As a result of this combination, and precipitation of the large ...

  3. Indicator bacteria - Wikipedia

    en.wikipedia.org/wiki/Indicator_bacteria

    For example, this study used data describing concentrations of Salmonella in chicken feces published in 1969. [14] Methods for quantifying bacteria, changes in animal housing practices and sanitation, and many other factors may have changed the prevalence of Salmonella since that time. Also, such an approach often ignores the complicated fate ...

  4. Salmonella - Wikipedia

    en.wikipedia.org/wiki/Salmonella

    Salmonella species are non-spore-forming, predominantly motile enterobacteria with cell diameters between about 0.7 and 1.5 μm, lengths from 2 to 5 μm, and peritrichous flagella (all around the cell body, allowing them to move). [5] They are chemotrophs, obtaining their energy from oxidation and reduction reactions, using organic sources.

  5. Presumptive and confirmatory tests - Wikipedia

    en.wikipedia.org/wiki/Presumptive_and...

    Most people who take a drug test take a presumptive test, cheaper and faster than other methods of testing. However, it is less accurate and can render false results. The FDA recommends for confirmatory testing to be conducted and the placing of a warning label on the presumptive drug test: "This assay provides only a preliminary result.

  6. Salmonellosis - Wikipedia

    en.wikipedia.org/wiki/Salmonellosis

    Salmonellosis is a symptomatic infection caused by bacteria of the Salmonella type. [1] It is the most common disease to be known as food poisoning (though the name refers to food-borne illness in general), these are defined as diseases, usually either infectious or toxic in nature, caused by agents that enter the body through the ingestion of food.

  7. Are your eggs safe? What to know after salmonella outbreak ...

    www.aol.com/lifestyle/eggs-safe-know-salmonella...

    Salmonella is a group of bacteria that can cause foodborne illness. It is commonly associated with undercooked meat and eggs; however, outbreaks have recently been linked to other foods, such as ...

  8. Widal test - Wikipedia

    en.wikipedia.org/wiki/Widal_test

    This is due to recurrent exposure to the typhoid causing bacteria, immunization and high chances of cross-reaction from infections, such as malaria and non typhoidal salmonella. [6] If no other tests (either bacteriologic culture or more specific serology) are available, a fourfold increase in the titer (e.g., from 1:40 to 1:640) in the course ...

  9. Thousands of cases of cantaloupe recalled due to possible ...

    www.aol.com/news/thousands-cases-cantaloupe...

    Salmonella is a bacteria that can cause serious and sometimes fatal infections in young children, people with weakened immune systems and frail or older adults, according to the Mayo Clinic.

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