The South Dakota Association of Healthcare Organizations (SDAHO) recently received the following Health Advisory from the Centers for Disease Control and Prevention (CDC), along with a South Dakota-specific update from the South Dakota Department of Health. We are sharing this information with our members as received to support awareness among healthcare providers. Please review the information below and follow the guidance provided by the CDC and the South Dakota Department of Health.
Health Alert Network | Domestically Acquired Cyclosporiasis Cases in Multiple U.S. States, 2026
July 14, 2026
CDCHAN-00531
Summary
The Centers for Disease Control and Prevention (CDC) is notifying clinicians, public health practitioners, and laboratorians of cases of domestically acquired cyclosporiasis in multiple U.S. states. Since May 1, 2026, CDC has received reports of 1,645 confirmed domestic cases of cyclosporiasis and is aware of more than 5,100 cases that require further analysis to confirm the illness as domestically acquired cyclosporiasis. This is substantially higher than the 249 cases reported nationally by this same time last year. Of the 1,645 case-patients with available information, 141 (9%) were hospitalized, and none have died. CDC, the U.S. Food and Drug Administration (FDA), and state and local health departments are working together to investigate multistate outbreaks of Cyclospora infections and to identify the sources of illness. Because cyclosporiasis is often underdiagnosed and underreported, the true number of illnesses is likely higher than what has been reported to CDC. This Health Advisory provides background information about cyclosporiasis, current U.S. surveillance data, and recommendations for clinicians, laboratorians, and public health departments to support recognition, diagnosis, and reporting.
View the full report.
South Dakota Summary
Three cyclosporiasis cases have been reported to the South Dakota Department of Health (SD-DOH) so far during 2026. SD case counts can be monitored at Infectious Disease Dashboard (last updated July 8, 2026). Medical providers suspecting cyclosporiasis infection in a patient should collect a specimen for testing. If positive, a report should be submitted to SD-DOH within three days (Category II disease). Reports can be submitted at sd.gov/diseasereport.
