TVMDL offers a range of tests to detect bovine viral diarrhea virus (BVDV). BVDV threatens the global cattle industry and negatively impacts producers in the form of decreased or lost productivity.  Despite vaccines and an array of diagnostic tests, this expensive disease continues to impact cattle producers. About 70 to 90% of all infections go […]

Hemorrhagic disease in deer can be caused by either Epizootic Hemorrhagic disease (EHD) viruses or Bluetongue viruses (BT). If hemorrhagic disease is suspected, the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) advises to test for both EHD and BT viruses. Why does TVMDL recommend testing for both diseases? Correct diagnosis is the only way to […]

Pre-weaning calf diarrhea is a common concern in the beef and dairy industry and the cause may be difficult to determine. This is due to the multifactorial nature of calf diarrhea. Multiple etiologies, both infectious and non-infectious, can result in diarrhea. Disease is caused by an interaction between a host, an agent, and the environment […]

Many Texans rely upon the weather for a variety of reasons. From crops to cattle, Texans are often at the mercy of Mother Nature. Although droughts can have a dire impact on animal health, floods can also contribute to widespread issues among animal owners. Excessive rainfall can contribute to mosquito-borne diseases, toxic plants, dermatologic conditions, […]

Canine parvovirus, also known as CPV or “parvo,” is a highly contagious disease infecting puppies and occasionally adult dogs. The disease can cause severe symptoms like vomiting, diarrhea and dehydration. The absence or delay of treatment can increase the risk of critical health complications including the possibility of death. Diagnostic testing plays a key role […]

What is canine influenza?Canine influenza virus (CIV), or dog flu, is a highly contagious respiratory infection of dogs that is caused by an influenza A virus. In the U.S., canine influenza has been caused by two influenza strains. The first strain reported in the United States, beginning in 2004, was an H3N8 influenza A virus. […]

Hemorrhagic disease is a viral disease caused by either the epizootic hemorrhagic disease virus or the bluetongue virus. These viruses are closely related, but genetically distinct. In North America, hemorrhagic disease is seen primarily among white-tailed deer and occasionally in mule deer, black-tailed deer, elk, pronghorn antelope, and bighorn sheep. Wild deer as well as […]

A 13-pound, juvenile, male intact, crossbred pig was submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) for necropsy and ancillary testing. The animal was described as a piglet and no age was stated on the submission form. The piglet was euthanized by the referring veterinarian for submission to the laboratory. The history indicated […]

Three, approximately two-month-old (two females and one male), pigs of unspecified breed were submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) for necropsy and ancillary testing. The owner reported multiple deaths in animals of various ages over the past 3 to 4 weeks due to respiratory disease. According to the owner, the clinical […]

Canine herpesvirus (CHV), or Varicellovirus canidalpha1, belongs to the subfamily Alphaherpesvirinae within the Herpesviridae family. This significant pathogen affects domestic dogs, notably neonates, and is likely to be globally distributed with varying prevalence across different geographic regions. While there is a need for more recent data on the seroprevalence of CHV in the United States, historical records indicate that less […]

Each test description in the online test catalog lists the proper sample submission, including collection container and shipping instructions. Follow the chart below and submit the sample in the correct tube.  Serum Plasma or Whole Blood Zinc Trace Material

Canine Vaccine Panel (ELISA)This test detects antibodies to both canine parvovirus and canine distemper virus. This assay is utilized as a screening tool for vaccination status only, not determination of infection. Results are reported as “positive” or “negative”; a negative result indicates an animal should be re-vaccinated. Canine Distemper & Parvovirus Antibody Titer Panel (IFA […]