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For example, in full designation Salmonella enterica subsp. enterica serovar Typhi is written as such, but in short designation it is written as Salmonella Typhi. [20] Each serovar can have many strains, as well, which allows for a rapid increase in the total number of antigenically variable bacteria. [21]
Typhoid fever, also known simply as typhoid, is a disease caused by Salmonella enterica serotype Typhi bacteria, also called Salmonella typhi. [2] [3] Symptoms vary from mild to severe, and usually begin six to 30 days after exposure. [4] [5] Often there is a gradual onset of a high fever over several days. [4]
Small nonprotein-coding RNAs are able to perform specific functions without being translated into proteins; 97 bacterial sRNAs from Salmonella Typhi were discovered. [22] AsdA (antisense RNA of dnaA) is a cis-encoded antisense RNA of dnaA described in S. enterica serovar Typhi. It was discovered by deep sequencing and its transcription was ...
The largest genome analysis of Salmonella enterica serovar Typhi (S. Typhi) also reveals that resistant strains – almost all originating in south Asia – have spread to other countries nearly ...
Pathogenic strains of Salmonella Typhi, Salmonella Paratyphi C, and Salmonella Dublin carry the capsular "Vi" antigen (Vi for virulence), [5] which is a special subtype of the capsule's K antigen (from the German word Kapsel meaning capsule).
The two known species of Salmonella are Salmonella enterica and Salmonella bongori. S. enterica is the type species and is further divided into six subspecies [2] [3] that include over 2,650 serotypes. [4] Salmonella was named after Daniel Elmer Salmon (1850–1914), an American veterinary surgeon.
A Salmonella serotype is determined by the unique combination of reactions of cell surface antigens. For Salmonella, the O and H antigens are used. [22] There are two species of Salmonella: Salmonella bongori and Salmonella enterica. Salmonella enterica can be subdivided into six subspecies. The process to identify the serovar of the bacterium ...
Some of the most common bugs that contaminate food include E. coli, salmonella, campylobacter, staphylococcus, listeria and norovirus. Though most any food can become contaminated with bacteria or ...