Signs and symptoms
Signs and symptoms may range from mild abdominal discomfort to full-blown dysentery characterized by cramps, diarrhea, with slimy-consistent stools, fever, blood, pus, or mucus in stools or tenesmus. Onset time is 12 to 96 hours, and recovery takes 5 to 7 days. Infections are associated with mucosal ulceration, rectal bleeding, and drastic dehydration. Reactive arthritis and hemolytic uremic syndrome are possible sequelae that have been reported in the aftermath of shigellosis.The most common neurological symptom includes seizures. Cause
Bacteria
Shigellosis is caused by a bacterial infection with Shigella, a bacterium that is genetically similar to and was once classified as E. coli. There are three serogroups and one serotype of Shigella:

Shigella flexneri
Shigella boydii
Shigella dysenteriae and
Shigella sonnei (serotype)The probability of being infected by any given strain of Shigella varies around the world. For instance, S. sonnei is the most common in the United States, while S. dysenteriae and S. boydii are rare in the U.S. Transmission
Shigella is transmitted through the fecal-oral route of individuals infected with the disease, whether or not they are exhibiting symptoms. Long-term carriers of the bacteria are rare. The bacteria can infect not just humans but other primates as well. Mechanism
Upon ingestion, the bacteria pass through the gastrointestinal tract until they reach the small intestine. There they begin to multiply until they reach the large intestine.
However, recent research has questioned the relationship between the Bishop score and a successful induction, finding that a poor Bishop score actually may improve the chance for a vaginal delivery after induction. A Bishop Score is done to assess the progression of the cervix prior to an induction. In order to do this, the cervix must be checked to see how much it has effaced, thinned out, and how far dilated it is. The score goes by a points system depending on five factors. Each factor is scored on a scale of either 0–2 or 0–3, any total score less than 5 holds a higher risk of delivering by caesarean section.Sometimes when a womans waters break after 37 weeks she is induced instead of waiting for labour to start naturally. This may decrease the risks of infection for the woman and baby but more research is needed to find out whether inducing is good for women and babies longer term.Women who have had a caesarean section for a previous pregnancy are at risk of having a uterine rupture, when their caesarean scar re-opens. Uterine rupture is very serious for the woman and the baby, and induction of labour increases this risk further. There is not yet enough research to determine which method of induction is safest for a woman who has had a caesarean section before. There is also no research to say whether it is better for these women and their babies to have an elective caesarean section instead of being induced.