Information from the USDA APHIS September 19 Vesicular Stomatitis Virus (VSV) Situation Report shows that VSV is still spreading in some places, although Texas, Oklahoma and New Mexico have no more VSV quarantines in place.
Since the last situation report (September 12), there were 19 new VSV-affected premises (11 confirmed positive premises, 8 suspect) identified in the following states.
Colorado (8 new confirmed positive premises, 5 new suspect premises)
- Chaffee County – 1 new confirmed positive premises
- Douglas County – 1 new confirmed positive premises
- Eagle County (New Infected County) – 1 confirmed positive premises
- Fremont County – 1 new suspect premises
- Garfield County – 2 new confirmed positive premises
- Larimer County – 1 new confirmed positive, 1 new suspect premises
- Las Animas County (New Infected County) – 1 confirmed positive premises
- Montrose County – 1 new suspect premises
- Morgan County – 1 new suspect premises
- Summit County – 1 new suspect premises
- Teller County (New Infected County) – 1 confirmed positive premises
Since the last situation report, 34 previously VSV-infected or suspect premises have been released from quarantine.
Nebraska (2 new suspect premises)
- Scotts Bluff County – 2 new suspect premises
Since the last situation report, 1 previously VSV-infected premises was released from quarantine in Morrill County.
Since the last situation report, 2 previously VSV-infected or suspect premises have been released from quarantine.
Utah (1 new suspect premises)
- Uintah County – 1 new suspect premises (cattle)
Since the last situation report, 4 previously VSV-infected or suspect premises have been released from quarantine.
Wyoming (3 new confirmed positive premises)
- Fremont County (new infected county) – 1 confirmed positive premises
- Park County – 2 new confirmed positive premises (1 cattle, 1 with both cattle and horses affected)
Summary of the Outbreak
The 2019 VSV outbreak began on June 21, 2019, when the National Veterinary Services Laboratories (NVSL) in Ames, Iowa confirmed the first VSV-positive premises in Kinney County, Texas. New Mexico, Colorado, Wyoming, Oklahoma, Nebraska and Utah subsequently broke with cases which were confirmed by NVSL on June 26, 2019 (Sandoval County, New Mexico), July 3, 2019 (Weld County, Colorado), July 24, 2019 (Platte County, Wyoming), July 29, 2019 (Tillman County, Oklahoma), August 9, 2019 (Lincoln County, Nebraska), and August 19, 2019 (Emery and Uintah Counties, Utah).
Since the start of the outbreak, 1,029 VSV-affected premises have been identified (426 confirmed positive, 603 suspect). One thousand eighteen (1,018) of these premises have only equine species clinically affected, 10 premises have only affected cattle (Boulder and Delta County, Colorado, Gonzales County, Texas, Uintah County, Utah, and Hot Springs, Park, and Platte County, Wyoming), and 1 premises has both cattle and horses clinically affected (Park County, Wyoming).
Colorado has identified 656 affected premises (250 confirmed positive, 406 suspect) in 35 counties (Adams, Alamosa, Arapahoe, Archuleta, Boulder, Broomfield, Chaffee, Conejos, Delta, Dolores, Douglas, Eagle, El Paso, Fremont, Garfield, Gilpin, Grand, Gunnison, Jefferson, La Plata, Larimer, Las Animas, Mesa, Mineral, Montezuma, Montrose, Morgan, Ouray, Park, Pueblo, Rio Blanco, San Miguel, Summit, Teller, and Weld Counties).
Nebraska has identified 19 affected premises (12 confirmed positive, 7 suspect) in 4 counties (Dawes, Lincoln, Morrill, and Scotts Bluff Counties).
New Mexico has identified 76 affected premises (47 confirmed positive, 29 suspect) in 12 counties (Cibola, Los Alamos, Mora, Rio Arriba, Sandoval, San Juan, San Miguel, Santa Fe, Sierra, Socorro, Taos, and Valencia Counties).
Oklahoma has identified 1 affected premises in 1 county (Tillman County).
Texas has identified 171 affected premises (75 confirmed positive, 96 suspect) located in 37 counties (Bastrop, Bell, Bosque, Brown, Caldwell, Coleman, Collin, Coryell, Dallas, Eastland, Ellis, Erath, Falls, Gonzales, Guadalupe, Haskell, Hays, Hill, Hood, Johnson, Kerr, Kinney, Lampasas, Mason, McLennan, Mills, Palo Pinto, Parker, San Saba, Shackelford, Somervell, Taylor, Tom Green, Travis, Val Verde, Wichita, and Williamson Counties).
Utah has identified 21 affected premises (11 confirmed positive, 10 suspect) in 5 counties (Duchesne, Emery, Grand, San Juan, and Uintah Counties).
Wyoming has identified 85 affected premises (30 confirmed positive, 55 suspect) in 11counties (Albany, Big Horn, Carbon, Converse, Fremont, Goshen, Hot Springs, Laramie, Park, Platte, and Sweetwater Counties).
There have been a total of 899 previously VSV-infected or suspect premises in all affected states that have completed the quarantine period and been released. All quarantined premises have been released in Oklahoma (since August 7, 2019), New Mexico (since September 5, 2019), and Texas (since September 19, 2019).