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Shigellosis, known historically as dysentery, is an infection of the intestines caused by Shigella bacteria. [ 1 ] [ 3 ] Symptoms generally start one to two days after exposure and include diarrhea , fever , abdominal pain , and feeling the need to pass stools even when the bowels are empty. [ 1 ]
The term is usually restricted to Shigella infections. [2] Shigellosis is caused by one of several types of Shigella bacteria. [3] Three species are associated with bacillary dysentery: Shigella sonnei, Shigella flexneri and Shigella dysenteriae. [4] A study in China indicated that Shigella flexneri 2a was the most common serotype. [5]
Dysentery may also be caused by shigellosis, an infection by bacteria of the genus Shigella, and is then known as bacillary dysentery (or Marlow syndrome). The term bacillary dysentery etymologically might seem to refer to any dysentery caused by any bacilliform bacteria, but its meaning is restricted by convention to Shigella dysentery.
The sanitation and hygiene barriers when placed correctly prevent the transmission of an infection through hands, water and food. The F-diagram can be used to show how proper sanitation (in particular toilets , hygiene , handwashing ) can act as an effective barrier to stop transmission of diseases via fecal–oral pathways.
Shigella is a genus of bacteria that is Gram negative, facultatively anaerobic, non–spore-forming, nonmotile, rod shaped, and is genetically nested within Escherichia. The genus is named after Kiyoshi Shiga , who discovered it in 1897.
Shigella infections may be contracted by a lack of monitoring of water and food quality, unsanitary cooking conditions and improper hygiene practices. [6] S. dysenteriae spreads through contaminated water and food, causes minor dysentery because of its Shiga toxin , but other species may also be dysentery agents. [ 7 ]
Treatment involves supportive care and may include dialysis, steroids, blood transfusions, or plasmapheresis. [1] [2] About 1.5 per 100,000 people are affected per year. [5] [1] Less than 5% of those with the condition die. [1] Of the remainder, up to 25% have ongoing kidney problems. [1] HUS was first defined as a syndrome in 1955. [1] [8]
Plesiomonas shigelloides is a species of bacteria [1] and the only member of its genus. It is a Gram-negative, rod-shaped bacterium which has been isolated from freshwater, freshwater fish, shellfish, cattle, goats, swine, cats, dogs, monkeys, vultures, snakes, toads and humans. [2]