Provider Reportable Diseases
Category 1 Disease Reporting
1. Report to DPH by phone on the day of diagnosis or suspicion.
- Business hours: (860) 509-7994
- Evenings, weekends, holidays: (860) 509-8000
2. Complete and submit PD-23 case report within 12 hours. Diseases with specialized reporting forms are asterisked (*) in the disease list below.
3. Report to the local Director of Health in town of patient residence.
Category 1 Diseases
Category 2 Disease Reporting
1. Complete and submit a PD-23 case report within 12 hours. Fax: (860) 629-6962
2. Hospital IPs entering cases in CTEDSS (when applicable) satisfies the reporting requirement.
3. Diseases with specialized reporting forms are asterisked (*).
Category 2 Diseases
PD-23 Footnotes
- Report only to DPH.
- As described in the CDC case definition.
- Individual cases of “significant unusual illness” are also reportable.
- Fax PD-23 to (959) 200-4751.
- Invasive disease: from sterile fluid (blood, CSF, pericardial, pleural, peritoneal, joint, or vitreous), bone, internal body sites, or other normally sterile
site, including muscle. - Report Healthcare Associated Infections (HAIs) as required by Conn. Gen. Stat. §§ 19a-490o and 19a-215. Detailed instructions on the types of HAIs, facility types, locations and methods of reporting are available on the DPH website.
- On request from the DPH and if adequate serum is available, send serum from patients with HUS to the State Public Health Laboratory for antibody testing.
- Clinical sepsis and blood or CSF isolate obtained from an infant <3 days of age.
Specialized Reporting Forms & Fax Numbers
Chickenpox (Varicella) Report (860) 707-1905
HIV Case Report Form (860) 509-8237
Occupational Diseases Report (860) 730-8424
Sexually Transmitted Diseases (860) 730-8380
Tuberculosis Report Form (860) 730-8271
Return to: Reportable Diseases
Updated 1/13/2026