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2019 Annual Report

Source: Equine Disease Communication Center | 01/21/2020 10:55:00 AM The Equine Disease Communication Center posted 414 alerts reporting on 963 horses or in the case of vesicular stomatitis, the number of premises affected. Click here to view...

EDCC August 2023 Statistics

Outbreak summary for August 1-31, 2023 138 alerts posted reporting on 152 horses Disease State Confirmed Eastern Equine Encephalitis 21 cases Florida 3 Georgia 1 New York 4 North Carolina 5 Ontario 5 South Carolina 3 Equine Herpesvirus- Respiratory...

EDCC July 2023 Statistics

Outbreak summary for July 1-31, 2023 42 alerts posted reporting on 45 horses Disease Confirmed Eastern Equine Encephalitis 6 cases Florida 2 Georgia 4 Equine Herpesvirus- Neurologic 2 cases Florida 1 Nevada 1 Equine Infectious Anemia 7 cases...

EDCC November 2023 Statistics

Outbreak Summary for November 1-30, 2023 44 alerts posted, reporting on 41 horses. Disease State Confirmed Eastern Equine Encephalitis 3 Cases Florida 2 Quebec 1 Equine Herpesvirus- Neurologic 5 Cases Maine 2 Nova Scotia 1 Ontario 2 Equine...

EDCC September 2023 Statistics

Outbreak summary for September 1-30, 2023 113 alerts posted reporting on 162 horses Disease State Confirmed Eastern Equine Encephalitis 16 cases Georgia 1 Maine 1 Michigan 1 New Jersey 1 New York 2 North Carolina 1 Ontario 7 Quebec 1...

Infectious Diseases

Infectious disease in horses is caused by a specific MICROBIAL agent such as a bacteria, viruses, or parasites. When left untreated, infectious disease can spread rapidly in groups of horses. Use the table below to learn more about a specific...

Vesicular Stomatitis

What is Vesicular Stomatitis? Vesicular stomatitis is a viral disease of horses, donkeys, mules, cattle, swine and New World camelids that occurs in the Western Hemisphere. The disease is named for the characteristic vesicular lesions it causes in...

Vesicular Stomatitis Confirmed in Arizona

Vesicular Stomatitis Confirmed in Arizona Two cases of vesicular stomatitis New Jersey Virus (VSNJV) have been confirmed in Cochise County, AZ. The cases were confirmed positive by the National Veterinary Services Laboratories on Oct. 31 and were...


Disease Alerts

Alert ID: 4702

Source: United States Department of Agriculture Animal and Plant Health Inspection Service | 12/11/2025

Comments: Since the last situation report (11/26/2025), there has been one (1) new confirmed positive equine premises identified in Arizona (Maricopa County - new affected county). All confirmed cases in the 2025 outbreak have been vesicular...

Alert ID: 4673

Source: United States Department of Agriculture Animal and Plant Health Inspection Service | 11/26/2025

Comments: Since the last situation report (11/24/2025), there has been one (1) new confirmed positive equine premises identified in Arizona (Santa Cruz County - new affected county) . All confirmed cases in the 2025 outbreak have been vesicular...

Alert ID: 4660

Source: United States Department of Agriculture Animal and Plant Health Inspection Service | 11/24/2025

Number Confirmed: 1; Comments: Since the last situation report (10/31/2025), there has been one (1) new confirmed positive equine premises identified in Arizona (Gila County - new affected county). All confirmed cases in the 2025 outbreak have been...

Alert ID: 4607

Source: Arizona Department of Agriculture and United States Department of Agriculture Animal and Plant Health Inspection Service | 11/3/2025

Number Confirmed: 2; Number Exposed: 60; Facility Type: Private Facility; Comments: On October 31, 2025, the National Veterinary Services Laboratories in Ames, Iowa, confirmed findings of vesicular stomatitis New Jersey virus (VSNJV) in horses on...

Alert ID: 3462

Source: | 1/9/2024

VSV Situation Report 1/9/2024 Since the last situation report (1/3/2024), there have been 2 new VSV-affected premises (2 confirmed positive) identified in California. All confirmed cases in the 2023-2024 outbreak have been vesicular stomatitis New...

Alert ID: 3453

Source: California Department of Food & Agriculture | 12/26/2023

Number Confirmed: 3; Number Suspected: Unknown; Number Exposed: Unknown; Comments: VSV Situation Report 12/26/2023. Since the last situation report (12/19/2023), there have been 3 new VSV-affected premises identified (3 confirmed positive) in...

Alert ID: 3447

Source: California Department of Food and Agriculture | 12/19/2023

Number Confirmed: 2; Number Suspected: 1; Number Exposed: Unknown; Comments: VSV Situation Report 12/19/2023. Since the last situation report (12/12/2023), there have been 3 new VSV-affected premises identified (2 confirmed positive, 1 suspect) in...

Alert ID: 3437

Source: California Department of Food and Agriculture | 12/12/2023

Number Confirmed: 1; Number Exposed: Unknown; Comments: VSV Situation Report 12/12/2023. Since the last situation report (12/5/2023), there has been 1 new VSV-affected premises identified (1 confirmed positive) in California. All confirmed cases to...

Alert ID: 3430

Source: California Department of Food and Agriculture | 12/6/2023

Number Confirmed: 1; Number Suspected: 2; Number Exposed: Unknown; Comments: VSV Situation Report 12/5/2023 Briefing Since the last situation report (11/28/2023), there have been 3 new VSV-affected premises identified (1 confirmed positive, 2...

Alert ID: 3419

Source: USDA | 11/28/2023

Number Confirmed: 3 Number Suspected: 6 Number Exposed: Unknown Comments: VSV Situation Report 11/28/2023: Since the last situation report (11/16/2023), there have been 9 new VSV-affected premises identified (3 confirmed positive, 6 suspect) in...