Aerobic gram negative rod
Often travel related
Outbreaks - e.g. Daycare
Infectious colitis - dysenteric
Most adults require treatment but Shigella infection is usually a self limited infection in healthy individuals, lasting 5-7 days. Treatment shortens course by about 2 days.
Treatment always recommended in immunocompromised patients or those with severe disease (require hospitalization, invasive disease, complicated infection).
Report to Public Health Services