Vesicular Stomatitis Equine Update from USDA

New equine VSV-infected counties were reported in Colorado, New Mexico and Texas as of July 18.
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VSV quarantine map 7-18-19

Counties with equines affected with vesicular stomatitis virus as of July 18, 2019

Since the last USDA Vesicular Stomatitis Virus (VSV) Situation Report on July 11, there have been new counties affected in Colorado, New Mexico and Texas. The new report was current as of July 18, 2019.

Since the start of the outbreak, Colorado has identified 56 affected equine premises (31 confirmed positive, 25 suspect) in six counties (Adams, Boulder, Broomfield, La Plata, Larimer, and Weld Counties).

New Mexico has identified 30 affected equine premises (27 confirmed positive, three suspect) in six counties (Los Alamos, Rio Arriba, Sandoval, Santa Fe, Taos, and Valencia Counties).

Texas has identified 22 affected equine premises (20 confirmed positive, two suspect) located in 12 counties (Bastrop, Coleman, Hays, Hood, Johnson, Kerr, Kinney, Shackelford, Taylor, Tom Green, Val Verde, and Wichita Counties). 

Here is the VSV breakdown from the USDA since the last situation report on July 11, 2019: 

Colorado Update 

  • 1 VSV-infected equine premises has been confirmed in Adams County, Colorado (new infected county). 
  • 3 VSV-infected equine premises have been confirmed and 11 new equine premises have been classified as “suspect” in Boulder County, Colorado (new infected county). 
  • 1 VSV-infected equine premises has been confirmed in Broomfield County, Colorado (new infected county). 
  • 3 new equine premises have been classified as “suspect” in La Plata County, Colorado. 
  • 5 new VSV-infected equine premises have been confirmed and 5 new equine premises have been classified as “suspect” in Larimer County, Colorado. 
  • 5 new VSV-infected equine premises have been confirmed and 1 new equine premises has been classified as “suspect” in Weld County, Colorado. 
  • The following previously VSV-infected premises have been released from quarantine: 1 in La Plata County and 3 in Weld County. 

New Mexico Update

  • 1 VSV-infected equine premises has been confirmed in Rio Arriba County, New Mexico (new infected county). 
  • 1 new VSV-infected equine premises has been confirmed and 2 new equine premises have been classified as “suspect” in Sandoval County, New Mexico. 
  • 4 new VSV-infected equine premises have been confirmed in Santa Fe County, New Mexico. 
  • 2 VSV-infected equine premises have been confirmed in Taos County, New Mexico (new infected county). 
  • 7 new VSV-infected equine premises have been confirmed in Valencia County, New Mexico. 
  • 1 previously VSV-infected premises has been released from quarantine in Sandoval County. 

Texas Update

  • 3 VSV-infected equine premises have been confirmed and 2 equine premises have been classified as “suspect” in Bastrop County, Texas (new infected county). 
  • 1 VSV-infected equine premises has been confirmed in Hays County, Texas (new infected county). 
  • 3 VSV-infected equine premises have been confirmed in Hood County, Texas (new infected county). 
  • 1 VSV-infected equine premises has been confirmed in Johnson County, Texas (new infected county). 
  • 1 VSV-infected equine premises has been confirmed in Shackelford County, Texas (new infected county). 
  • 1 VSV–infected equine premises has been confirmed in Wichita County, Texas (new infected county). 
  • 1 previously VSV-infected equine premises was released in Kerr County. 

Summary of the Outbreak  from USDA

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 and Colorado subsequently broke with cases, which were confirmed by the NVSL on June 26 (Sandoval County, New Mexico) and July 3 (Weld County, Colorado). 

To date, all confirmed cases have been found on equine premises in these three states. 

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

Read the complete USDA July 18 report here.

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