Source:
USDA-APHIS-Veterinary Services
Comments: Since the last VSV situation report (6/26/2026), one (1) new VSV-affected equine premises has been confirmed positive in Rio Arriba County, New Mexico (New Affected County). All confirmed cases in the 2025-26 outbreak have been vesicular stomatitis New Jersey virus (VSNJV) serotype. Updates are as follows: Arizona • The last VSV-quarantined premises in Arizona was released on 4/20/2026 and no new cases have been identified to date. Colorado • The last VSV-quarantined premises in Colorado was released on 5/26/2026 and no new cases have been identified to date. New Mexico • Rio Arriba County (New Affected County) – 1 new confirmed positive equine premises • Since the last situation report (6/26/2026), 5 previously VSV-affected equine premises have been released from quarantine in Santa Fe County (1) and Valencia County (4). Since the start of the outbreak, 29 VSV-affected premises have been identified (24 confirmed positive, 5 presumptive positive) in 3 states, Arizona, Colorado, and New Mexico. All 29 premises have had only equine species clinically affected with 15 premises located in 6 Arizona counties (Cochise, Gila, Maricopa, Pinal, Santa Cruz, and Yavapai Counties), 1 premises located in 1 Colorado county (Montezuma County), and 13 premises located in 4 New Mexico counties (Rio Arriba, Sandoval, Santa Fe, and Valencia Counties).;
For more information, go to https://www.aphis.usda.gov/livestock-poultry-disease/cattle/vesicular-stomatitis