2026

January 2026

• DELAWARE HEALTH ALERT #528: Human Exposure to Avian Influenza

February 2026

• DELAWARE HEALTH ADVISORY #529: Measles Exposure at Delaware Health Care Facility

March 2026

• DELAWARE HEALTH ADVISORY #530: First Delaware Tick Positive for Powassan Virus: Important Information for Health Care Providers

May 2026

• DELAWARE HEALTH ADVISORY #531: Measles Detection in Lewes Wastewater Sample
• DELAWARE HEALTH ALERT #532: Visible Contamination Found in Intravenous (IV) Tubing

June 2026

• Delaware Health Advisory #535: Increase in Pertussis Cases, Including Among Delaware Adolescents and Infants

July 2026

• DELAWARE HEALTH ADVISORY #536: Domestically Acquired Cyclosporiasis Cases in Delaware and Multiple U.S. States
• Delaware Health Alert #537: DPH Confirms First Positive Measles Case in over a Decade
• DELAWARE HEALTH UPDATE #538: Accelerated Measles Vaccination in Delaware

August 2026

• DELAWARE HEALTH ADVISORY #539: Overview of the DPH Medication & Vaccine Access Program and Required Forms

September 2026

• DELAWARE HEALTH ADVISORY #540: Out-of-State Measles Patient Visits Sussex County; Heightened Awareness and Vaccination Encouraged for all Delawareans

2025

June 2025

• DELAWARE HEALTH ALERT #525: Increase in Emergency Department Visits Due to Tick Bites in Delaware

November 2025

• DELAWARE HEALTH ADVISORY #526: BACKYARD POULTRY FLOCK TESTS PRESUMPTIVE POSITIVE FOR AVIAN INFLUENZA

 

 

For health alerts prior to June 2025, visit https://dhss.delaware.gov/dph/homepage/about/sections/emsps/php/alerts/.