In a follow-up report on the Shigella outbreak in Kansas City, MO, health officials on Monday put the case count at 190, up from 143 ten days ago.
This is a dramatic increase compared to the normal year when 10 cases are seen.
In addition, dozens of students at a Kansas City school were out sick with symptoms resembling shigella.
60 students at Faxon Elementary School have been sickened; however, the causative agent of the illness has not been confirmed.
Shigellosis is an acute bacterial disease of the intestines caused by several species of the bacterium, Shigella. It is typified by loose stools, frequently containing blood and mucus (dysentery), accompanied by fever, vomiting, cramps and occasionally toxemia.
It can cause bacillary dysentery because of the invasive ability of the organism that may result ulcerations and abscesses of the intestines.
It rarely spreads to the bloodstream.
More severe complications may include convulsions in children, Reiter’s syndrome and hemolytic uremicsyndrome depending on the species of Shigella implicated.
It is transmitted primarily by fecal-oral person to person means. It can also occur through contaminated food or water. Those that are primarily responsible for transmission are those that fail to wash their hands thoroughly after defecation.
Because Shigella is resistant to gastric acid, a person can get infected with as little as 10 organisms.
After getting infected symptoms usually appear 1-3 days later. It can be transmitted during the acute phase ofinfection till approximately four weeks after illness when the organism is no longer present in the feces. Asymptomatic carriers can also infect others.
Diagnosis is confirmed through bacteriological culture of feces. Treatment of shigellosis may include fluid and electrolyte replacement if there are signs of dehydration.
Antibiotics can shorten the course of infection, the severity of illness and the period of time a person may excrete the pathogen. Because of some antibiotic resistance, a antibiotic susceptibility test should be performed to determine which antibiotic will be effective.
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