Disease Alerts

Number Confirmed: 1; 
Number Suspected: 1; 
Number Exposed: 13; 
Facility Type: Private Facility; 
Comments: This is the 6th confirmed premises for Florida in 2026.;

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Facility Type: Private Facility; 

Horse 1: 
Onset of Clinical Signs: 4/9/2026; Confirmation Date: 4/10/2026; Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;

Number Confirmed: 1; 
Number Exposed: 4; 
Facility Type: Boarding Facility; 

Horse 1: 
Age: 5; Gender: Mare; Breed: Morgan; Onset of Clinical Signs: 4/7/2026; Clinical Signs: Mucoid nasal discharge, occasional cough, lymphadenopathy, fever, decreased appetite; Confirmation Date: 4/9/2026; Horse Status: Recovering; Vaccination Status: Vaccinated;

Comments: Also, PCR positive for EHV-4 and ERBV;

Number Confirmed: 1; 
Number Suspected: 3; 
Facility Type: Private Facility; 

Horse 1: 
Age: 14; Gender: Mare; Breed: Kentucky Mountain Horse; Onset of Clinical Signs: 4/6/2026; Clinical Signs: Cough; Confirmation Date: 4/9/2026; Horse Status: Recovering; Vaccination Status: Status Unknown;

Number Confirmed: 1; 
Number Exposed: 20; 
Facility Type: Boarding Facility; 

Horse 1: 
Age: 12; Gender: Mare; Breed: Quarter Horse (QH); Onset of Clinical Signs: 3/27/2026; Clinical Signs: Post-vaccinal fevers, nasal discharge; Confirmation Date: 3/31/2026; Horse Status: Recovering; Vaccination Status: Vaccinated;

Number Confirmed: 1; 
Number Exposed: Unknown; 
Number Euthanized: 1; 
Facility Type: Private Facility; 

Horse 1: 
Age: 1; Gender: Gelding; Breed: Warmblood (WB); Onset of Clinical Signs: 3/15/2026; Clinical Signs: Acute onset head tilt with all limb weakness progressing to lateral recumbency; Confirmation Date: 3/26/2026; Horse Status: Euthanized; Vaccination Status: Status Unknown;

Comments: This is the first confirmed EEE case for Florida in 2026.;

Number Confirmed: 1; 
Number Exposed: 3; 

Horse 1: 
Age: 4; Gender: Gelding; Breed: Quarter Horse (QH); Horse Status: Euthanized; 

Comments: A 4–year–old Appendix Quarter Horse gelding in Fresno County was confirmed positive for Equine Infectious Anemia (EIA). The horse was euthanized on March 27, 2026, due to worsening clinical signs. Three (3) potentially exposed horses on the home premises have initially tested negative for EIA and will remain under quarantine until their sixty (60) day retest as per CDFA and USDA program requirements. CDFA has been on site with continued monitoring of the situation. Epidemiological tracing determined that the positive horse had recently trained on the same premises as the current Stanislaus County EIA incident. Related to previous alert ID: 4938.;

Number Confirmed: 1; 

Horse 1: 
Age: 3; Gender: Gelding; Breed: Quarter Horse (QH); Confirmation Date: 4/9/2026; 

Comments: A 3–year–old Quarter Horse gelding in San Joaquin County was confirmed positive for Equine Infectious Anemia (EIA). Epidemiological tracing determined that this horse had recently trained on the same premises as the current Stanislaus County EIA incident. The gelding has been quarantined on premises with no additional exposed horses on the property. Related to previous alert ID: 4938.;

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: 10;

Number Suspected: 12; 
Number Exposed: Unknown; 
Facility Type: Private Facility;

Clinical signs: Nasal discharge, swollen and draining lymph lodes, fever, lethargy, depression, some with difficulty breathing as a result of swelling.