What causes shigella dysenteriae?
What causes shigella dysenteriae?
What causes shigella dysenteriae?
Shigella is found in the stool (feces) of infected people, in food or water contaminated by an infected person, and on surfaces that have been touched by infected people. Shigellosis often occurs in toddlers who are not fully toilet-trained.
What infections diseases is Shigella caused by?
Shigella bacteria cause an infection called shigellosis. Most people with Shigella infection have diarrhea (sometimes bloody), fever, and stomach cramps.
What is the most common source of Shigella infections?
Shigella infection (shigellosis) is most common among young children. Children can get infected if they put unwashed hands in their mouth after touching something that is contaminated with Shigella germs. These germs can spread easily among children and to family members and others in the community.
Who is most affected by Shigella dysenteriae?
Children under age 5 are most likely to get shigella infection. But shigella can infect people of any age. Living in group housing or participating in group activities. Close contact with other people spreads the bacteria from person to person.
What are the symptoms of shigellosis?
People with Shigella infection (shigellosis) usually start experiencing symptoms 1 to 2 days after contact with the germ. These symptoms include: Diarrhea that can be bloody. Fever….When to Contact Your Doctor
- Fever.
- Bloody diarrhea.
- Severe stomach cramping or tenderness.
- Dehydration.
How does Shigella affect the body?
The Shigella bacteria pass through your stomach and then multiply in your small intestines. They then spread into your large intestines (also known as colon), causing cramping in that part of your body, along with diarrhea.
Where is Shigella flexneri commonly found?
Shigella species invade the colonic and rectal epithelium of primates and humans, causing the acute mucosal inflammation characteristic of shigellosis. Infection is usually confined to the superficial layer of the colonic mucosa, where severe tissue damage leads to abscesses and ulceration.
What happens if Shigella goes untreated?
Untreated, the colon may rupture and cause peritonitis, a life-threatening condition requiring emergency surgery. The other relatively rare complication that can occur with a Shigella infection is the development of hemolytic uremic syndrome (HUS).
How is shigellosis diagnosed?
Infection is diagnosed when a laboratory identifies Shigella in the stool (poop) of an ill person. The test could be a culture that isolates the bacteria or a rapid diagnostic test that detects genetic material of the bacteria.
How is classic dysentery characterized in Shigella infection?
Classic dysentery is characterized by scant stools containing mucus, pus and blood. Shigellosis is responsible for rectal and colonic ulcerations that do not develop beyond the lamina propria. Rare cases of sepsis have been observed but Shigella spp. are responsible for HUS. Anthony A. Nash,
Can Shigella cause intestinal illness?
If shigellosis is the suspected cause of intestinal illness, a request should be made to have a fecal sample tested for the Shigella bacteria. Am I at Risk for Disease?
How do you get Shigella disease?
Shigella Infection. Shigella dysenteriae, Shigella flexneri, Shigella boydii and Shigella sonnei20are responsible for acute diarrhea. Man is the only known reservoir for Shigella spp. and transmission is by direct contact from person-to-person and by contaminated water and food. Sexual transmission has been observed in homosexual males.
What is Shigella Type D?
Shigellosis is an acute intestinal illness caused by a group of bacteria called Shigella. For general information on bacteria, see the Bacteria fact sheet. There are four species of Shigellae; Shigella sonnei (abbreviated S. sonnei or “Type D”), S. flexneri (or “Type B”), S. boydii and S. dysenteriae.
https://www.youtube.com/watch?v=Wk10lpdtwOY