Veterinary Public Health

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Veterinary Public Health Program
313 N Figueroa St. Rm 1127
Los Angeles, CA 90012
Tel (213) 288-7060
Fax (213) 481-2375
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Parvovirus in Dogs - Case Definition

This case definition is used to evaluate and categorize cases of parvovirus reported in dogs to the Los Angeles County Department of Public Health. It was developed by public health veterinarian by reviewing published published literature and reported cases of parvovirus in LA County dogs. Earlier case reports of this disease were reviewed and a few reclassified to meet this 2015 case definition. 

Learn more about animal disease surveillance in LA County, and about cases of canine parvovirus in dogs in LA County

CASE DEFINITION - Parvovirus in Dogs - 2015
  • PCR positive feces, rectal swab or intestinal sample, or

  • ELISA (i.e. SNAP® Parvo Test) positive result on feces, rectal smear or intestinal sample


[This category is not used for canine parvovirus]


 Compatible clinical findings, PLUS

  • Suspected exposure or vulnerability (young age, unvaccinated), or

  • Untested for virus, or

  • Negative ELISA test (false negatives possible) 

  • Does not meet the criteria for CONFIRMED or SUSPECTED


Not examined. In general, all cases reported for dogs that live in LA County are regarded as being exposed in LA County.

  RATIONALE FOR SURVEILLANCE IN ANIMALS   Canine parvovirus is not zoonotic. However, people in areas with a greater amount of parvo in dogs may also face elevated risk for exposure to zoonotic diseases because of the lack of veterinary care. Effective vaccination against canine parvovirus has been a standard part of veterinary preventative care for decades. Therefore, cases serve as a general marker for areas in Los Angeles County where residents have lower access to, or utilization of, basic veterinary care. Veterinary care includes a package of preventative services, treatments and education for pet owners that help prevent zoonotic infections of many types.  Epidemiologic data on parvo in dogs indicates areas where the need for clinical and educational animal health services is higher. 

Last updated: June 8, 2017

Public Health has made reasonable efforts to provide accurate translation. However, no computerized translation is perfect and is not intended to replace traditional translation methods. If questions arise concerning the accuracy of the information, please refer to the English edition of the website, which is the official version.
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