No New States with VSV; Spread Continues

Since the last report on August 9, there have been 117 new VSV-affected premises identified.
Author:
Publish date:
VSV positive counties 8-15-19

VSV-positive premises have been confirmed to date in 6 states: Colorado, Nebraska, New Mexico, Oklahoma, Texas, and Wyoming. No new states have been confirmed positive since the last situation report. 

Since the last situation report (August 9, 2019), there have been 117 new VSV-affected premises (36 confirmed positive, 81 suspect) identified.

Colorado (26 new confirmed positive premises, 67 new suspect premises)

  • Arapahoe County (new infected county) – 1 confirmed positive premises 
  • Archuleta County – 2 new suspect premises 
  • Boulder County – 1 new suspect premises 
  • Delta County – 2 new confirmed positive (1 bovine), 14 suspect premises 
  • Douglas County – 5 new confirmed positive, 1 new suspect premises 
  • Gunnison County (new infected county) – 1 confirmed positive premises 
  • Jefferson County – 11 new confirmed positive, 6 new suspect premises 
  • La Plata County – 3 new suspect premises 
  • Larimer County – 1 new confirmed positive, 7 new suspect premises 
  • Mesa County – 3 new confirmed positive, 18 new suspect premises 
  • Mineral County (new infected county) – 1 confirmed positive premises 
  • Montrose County – 11 new suspect premises 
  • Ouray County – 1 new suspect premises 
  • Weld County – 1 new confirmed positive, 3 new suspect premises 
  • Since the last situation report, 95 previously VSV-infected or suspect premises have been released from quarantine. 

Nebraska (1 new confirmed positive) 

• Scottsbluff County (new infected county) – 1 confirmed positive premises 

New Mexico (3 new confirmed positive premises, 3 new suspect premises)

  • San Juan County – 1 new suspect premises 
  • San Miguel County – 1 new confirmed positive, 1 new suspect premises 
  • Taos County – 2 new confirmed positive, 1 new suspect premises 

Texas (4 new confirmed positive premises, 6 new suspect premises) 

  • Bastrop County – 1 new suspect premises 
  • Bell County – 1 new suspect premises 
  • Bosque County (New Infected County) – 1 confirmed positive premises 
  • Dallas County (New Infected County) – 2 confirmed positive premises
  • Guadalupe County – 1 new suspect premises 
  • McLennan County – 1 new confirmed positive premises 
  • Travis County – 1 new suspect premises 
  • Williamson County -2 new suspect premises 
  • Since the last situation report, 59 previously VSV-infected or suspect premises have been released from quarantine.

Wyoming (2 new confirmed positive premises, 5 new suspect premises) 

  • Albany County (new infected county) – 1 confirmed positive premises 
  • Converse County – 4 new suspect premises 
  • Platte County – 1 new suspect premises 
  • Sweetwater County (New Infected County) – 1 confirmed positive premises 
  • Since the last situation report, 2 previously VSV-infected or suspect premises were released from quarantine in Platte County. 
VSV ear lesions

Many horses in the current outbreak have been showing vesicular stomatitis virus lesions in the ears.

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, and Nebraska 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), and August 9, 2019 (Lincoln County, Nebraska). 

Since the start of the outbreak, 783 VSV-affected premises have been identified (328 confirmed positive, 455 suspect). Seven hundred eighty (780) of these premises have only equine species clinically affected and 3 premises have affected cattle (Boulder and Delta County, Colorado and Gonzales County, Texas). 

Colorado has identified 527 affected premises (206 confirmed positive, 321 suspect) in 23 counties (Adams, Alamosa, Arapahoe, Archuleta, Boulder, Broomfield, Conejos, Delta, Douglas, Gilpin, Grand, Gunnison, Jefferson, La Plata, Larimer, Mesa, Mineral, Montezuma, Montrose, Morgan, Ouray, Pueblo and Weld Counties). 

Nebraska has identified 2 affected premises in 2 counties (Lincoln and Scottsbluff Counties). 

New Mexico has identified 74 affected premises (47 confirmed positive, 27 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 155 affected premises (64 confirmed positive, 91 suspect) located in 34 counties (Bastrop, Bell, Bosque, Brown, Caldwell, Coleman, Coryell, Dallas, Eastland, Erath, Falls, Gonzales, Guadalupe, Haskell, Hays, 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). 

Wyoming has identified 24 affected premises (8 confirmed positive, 16 suspect) in 5 counties (Albany, Converse, Laramie, Platte and Sweetwater Counties). 

There have been a total of 414 previously VSV-infected or suspect premises that have completed the quarantine period and been released.

For more information on this report visit this USDA APHIS page.

Editor's note: For more information about vesicular stomatitis virus and this outbreak, listen to EquiManagement's Disease Du Jour podcast with Dr. Angela Pelzel-McCluskey from USDA APHIS Veterinary Services.

AAEP-MediaPartner_1968x1100
AVMA-PLIT-logo_resized
BEVA-logo_3757x2100
WEVA-Logo-Dark-Background_1789x1000
NZEVA-logo_1100x1968

ISELP-logo_1100x1968

AAEVT-logo_2050x3667