The County of San Diego has announced the ongoing outbreak of shigella now stands at 46 confirmed and five probable cases, with slowing cases up one from a week ago and a total of three since the 41 confirmed and seven probable cases reported in the Dec. 3 update.
The continuing investigation shows onset of illness dates between Aug. 16 and Nov. 21, 2021, with the new cases occurring between Nov.15 and Nov. 21, 2021, with symptom onset for the latest case being Nov. 27, 2021. The 51 cases in this outbreak represent 13% of the 402 total cases reported to date in San Diego County.
The County Public Health shigella website includes an epidemiological curve showing declining case numbers in recent weeks.

