In simple words: Shigellosis, commonly known as Group D shigellosis, is an infection of the digestive system caused by the Shigella sonnei bacteria. This bacteria is often spread through contaminated food or water. Symptoms include diarrhea (sometimes bloody), stomach cramps, pain when passing stool, and fever. Severe cases can lead to dehydration, and children may experience seizures. Diagnosis involves stool tests, and treatment typically focuses on rehydration and, if necessary, antibiotics.

Shigellosis, an infection affecting the gastrointestinal system, is primarily caused by the bacterium Shigella sonnei, often transmitted through the consumption of water and food items contaminated with fecal matter.The infection typically manifests as watery or bloody diarrhea, accompanied by stomach pain, tenesmus (rectal pain during straining for bowel movements), and fever. In severe instances, patients can suffer from extreme dehydration, while seizures are a potential complication, particularly in children. Diagnosis involves laboratory tests on fecal samples to isolate the bacterium; if positive, a culture and sensitivity assessment may be performed to guide effective antibiotic selection. Treatment includes oral or intravenous rehydration and, in cases of severe infection, targeted antibiotic therapy. Shigella sonnei is the most commonly reported Shigella species in the U.S.

Example 1: A 3-year-old child presents with bloody diarrhea, fever, and abdominal pain after attending a picnic. Stool culture confirms Shigella sonnei, and the child receives intravenous rehydration and antibiotics., A traveler returning from a developing country develops persistent watery diarrhea and fever. A stool sample is positive for Shigella sonnei, prompting oral rehydration therapy and antibiotic treatment., An outbreak of shigellosis occurs in a community due to contaminated water supply. Several individuals present with various gastrointestinal symptoms, and A03.3 is used for coding the Shigella sonnei infections confirmed by laboratory testing.

Documentation should include signs and symptoms, travel history, exposure to potential sources of infection, laboratory results (stool culture and sensitivity), and treatment provided (rehydration, antibiotics).