causes of shigella
Shigella sonnei (the most common species in the U.S.) Shigella flexneri; Shigella boydii; Shigella dysenteriae; The transmission of most Shigella infections is caused by the bacterium passing from stools or soiled fingers of one person to
Shigella also can be passed from person to person during anal-oral sex. Shigellosis is more common among children ages 1 to 4. Children of this age have a higher rate of infection because they are starting to use the toilet and often forget to wash their hands.