CDC HAN: Domestically Acquired Cyclosporiasis Cases in Multiple U.S. States, 2026

Date:7/14/2026

Official Message No.:112707-7-14-2026-PHAD

Contact Info: Deepam | Deepam.Thomas@doh.nj.gov

Foodborne and Waterborne Disease Unit | cds.fwd.epi@doh.nj.gov

Attachments: No

The Centers for Disease Control and Prevention (CDC) issued a Health Alert Network (HAN) Health Advisory to inform clinicians, public health practitioners, and laboratorians of cases of domestically acquired cyclosporiasis in multiple U.S. states. This health update can be found at https://www.cdc.gov/han/php/notices/han00531.html

The New Jersey Department of Health continues to work with Local Health Departments and federal partners to investigate Cyclosporiaisis cases and monitor for any potential illness clusters. Nationally, there have been increases in cases reported, including a large multistate outbreak in four midwestern states (Michigan, Ohio, West Virginia, and Kentucky). While NJ has not experienced a substantial increase in cases, reported cases are beginning to rise steadily.

Action Items

Clinicians should consider cyclosporiasis as a clinical diagnosis when the clinical presentation, history or travel suggests a possible infection.
All cases should be reported by the next business day to the Local Health Department through ELR or manual reporting into CDRSS.
Local health department (LHD) investigators should promptly interview all cyclosporiasis cases with the CDC Cyclosporiasis National Hypothesis Generating Questionnaire (CNHGQ), submit the CNHGQ to the Foodborne and Waterborne Disease Unit, and update CDRSS.

Contact Information

New Jersey Department of Health, Communicable Disease Service (CDS)

Phone: (609) 826-5964 during business hours; (609) 392-2020 after hours
Email: cds.fwd.epi@doh.nj.gov (Foodborne and Waterborne Disease Unit)

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