Thank you for supporting the businesses that support NWHS!

Outbreak Alerts: April 10, 2026 – Equine Infectious Anemia in Fresno County, CA

Equine Herpesvirus- Neurologic

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 … Read More

Outbreak Alerts: April 10, 2026 – Equine Infectious Anemia in San Joaquin County, CA

Equine Herpesvirus- Neurologic

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture 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 … Read More

Outbreak Alerts: March 20, 2026 – Equine Infectious Anemia in Multiple Counties in CA

Equine Herpesvirus- Neurologic

Confirmed Case(s) – Quarantine Released Source: California Department of Food and Agriculture   Merced County, CA Number Confirmed: 1; Number Exposed: 1; Comments: The one (1) potentially exposed horses on this premises tested negative on the sixty (60) day retest. Quarantine on this premises has been released.; Previous Alerts: 4842   Stanislaus County, CA Number Confirmed: 2; Number Exposed: 25; Horse … Read More

Outbreak Alerts: November 18, 2025 – Equine Infectious Anemia in Riverside County, CA

Equine Herpesvirus- Neurologic

Confirmed Case(s) – Quarantine Released Source: California Department of Food and Agriculture Number Confirmed: 1; Number Exposed: 1; Number Euthanized: 1;  Horse 1: Age: 13; Gender: Gelding; Breed: Quarter Horse (QH); Horse Status: Euthanized;  Comments: A confirmed EIA positive equid must be euthanized or quarantined for life 200 yards away from any EIA negative equid as per USDA EIA program rules. Euthanasia was elected … Read More

Outbreak Alert: August 26, 2025 – Equine Infectious Anemia in Riverside County, CA

Equine Herpesvirus- Neurologic

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 1  Horse 1: Age: 13; Gender: Gelding; Breed: Quarter Horse (QH);  Comments: A 13–year–old Quarter Horse gelding in Riverside County was confirmed positive for Equine Infectious Anemia (EIA). One (1) potentially exposed horse on the home premises has initially tested negative for EIA … Read More

Outbreak Alert: March 25, 2025 – Equine Infectious Anemia in San Bernardino County, CA

Equine Herpesvirus- Neurologic

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 2 Horse 1: Age: 7; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Racing;  Comments: A 7–year–old Quarter Horse gelding in San Bernardino County was confirmed positive for Equine Infectious Anemia (EIA). Two (2) potentially exposed horses on the home premises have been tested for EIA … Read More

Outbreak Alert: March 21, 2025 – Equine Infectious Anemia in San Joaquin County, CA

Equine Herpesvirus- Neurologic

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 18Number Euthanized: 1 Horse 1: Age: 10Gender: GeldingBreed: Quarter Horse (QH)Horse Status: EuthanizedComments: A 10–year–old Quarter Horse gelding in San Bernardino County was confirmed positive for Equine Infectious Anemia (EIA). A confirmed EIA positive equid must be euthanized or quarantined for life 200 … Read More

Outbreak Alert: January 28, 2025 – Equine Infectious Anemia in San Bernardino County, CA

Equine Herpesvirus- Neurologic

Confirmed Case(s) – Official Quarantine Source: California Department of Food and Agriculture Number Confirmed: 1Number Exposed: 18Number Euthanized: 1 Horse 1: Age: 10Gender: GeldingBreed: Quarter Horse (QH)Horse Status: EuthanizedComments: A 10–year–old Quarter Horse gelding in San Bernardino County was confirmed positive for Equine Infectious Anemia (EIA). A confirmed EIA positive equid must be euthanized or quarantined for life 200 … Read More

Outbreak Alert: November 21, 2024 – Equine Infectious Anemia in Orange County, CA

Equine Herpesvirus- Neurologic

**Quarantine Released** Source: CDFA Number Exposed: 6Comments: November 19, 2024: The population of horses that were considered close contact potentially exposed on the Orange County premises have remained under quarantine during the ongoing USDA and CDFA investigation into this case. USDA has been handling the multistate aspect of this investigation and based on … Read More

Outbreak Alert: March 28, 2023 – Equine Infectious Anemia in Los Angeles County, CA

Equine Herpesvirus- Neurologic

Source: California Department of Food and Agriculture Number Confirmed: 2Number Exposed: 10Number Euthanized: 2 Horse 1: Age: 4Gender: GeldingBreed: Quarter Horse (QH)Usage: RacingHorse Status: Euthanized;  Horse 2: Age: 8Gender: GeldingBreed: Quarter Horse (QH)Usage: RacingConfirmation Date: 3/20/2024Horse Status: Euthanized Comments: A 4–year–old Quarter Horse gelding and an 8–year–old Quarter Horse gelding in Los Angeles County were confirmed positive for Equine Infectious Anemia (EIA). A confirmed EIA positive equid … Read More

generac-home-standby-generator-banners