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Mallory Pfeifer

Diagnostic guidance: Mycoplasma testing options

September 18, 2023 by Mallory Pfeifer

A white-red cat on an orange background growls with his eyes

Diagnostic guidance: Mycoplasma testing options Brandon Dominguez, DVM, MS, DACVPM Mycoplasma bacteria can cause a variety of symptoms in many of our animal species. These bacteria are unique because they lack a cell wall, making them challenging … [Read more...] about Diagnostic guidance: Mycoplasma testing options

Filed Under: DX Guidance, News Tagged With: bacteria, bacteriology, canine, feline, livestock, Molecular Diagnostics, mycoplasma, poultry, Virology

Campbell joins TVMDL as veterinary diagnostician

August 28, 2023 by Mallory Pfeifer

On August 10, Catherine Campbell, DVM, joined the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in College Station as a veterinary diagnostician. In 1985, Campbell earned a bachelor’s degree and in 1990 earned a Doctor of Veterinary … [Read more...] about Campbell joins TVMDL as veterinary diagnostician

Filed Under: New Hires & Promotions, News Tagged With: Campbell, college station, companion animal, small animal, veterinary diagnostician

Shipping samples in the Texas heat

August 17, 2023 by Mallory Pfeifer

It's hot and getting hotter. Extreme temperatures will affect the condition of samples if not shipped properly. This may lead to delays in results if samples arrive at TVMDL in an untestable condition. TVMDL encourages clients to beat the heat … [Read more...] about Shipping samples in the Texas heat

Filed Under: DX Guidance, News Tagged With: heat, leaking, samples, shipping

TVMDL adds new testing for Neospora caninum and Toxoplasma gondii

August 14, 2023 by Mallory Pfeifer

Portrait of a 10 month old domestic shorthair kitten with gray stripes laying down isolated on white background

The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) is pleased to offer two new ELISA tests to detect antibodies against Neospora caninum and Toxoplasma gondii in multiple species. Both tests offer improvements over the existing … [Read more...] about TVMDL adds new testing for Neospora caninum and Toxoplasma gondii

Filed Under: News, Test Catalog Updates Tagged With: antibodies, blood, bovine, canine, cattle, feline, livestock, serology, serum

Epidemiology of systemic mycoses in Texas

August 11, 2023 by Mallory Pfeifer

Epidemiology of systemic mycoses in Texas Carlos Rodriguez, Epidemiology and Informatics Manager The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) assists Texas veterinarians in diagnosing an average of over 350 cases of systemic … [Read more...] about Epidemiology of systemic mycoses in Texas

Filed Under: DX Guidance, News Tagged With: bacteria, bacteriology, epidemiology, mycoses, serology

Historical overview of anthrax in Texas’ livestock population (1974-2022)

August 11, 2023 by Mallory Pfeifer

Historical overview of anthrax in Texas’ livestock population (1974-2022) Narayan Paul, DVM, MS, PhD, ACVM Anthrax is caused by a gram positive, rod-shaped bacteria called Bacillus anthracis. This is a spore forming bacteria that can persist in … [Read more...] about Historical overview of anthrax in Texas’ livestock population (1974-2022)

Filed Under: Case Study Tagged With: anthrax, bacteriology, bovine, caprine, cattle, equine, goats, horses, microbiology, ovine, sheep

College Station laboratory experiencing dropped calls

August 7, 2023 by Mallory Pfeifer

TVMDL's College Station laboratory is currently experiencing issues with our Microsoft Phone Service. Outbound calls can only be made intermittently and inbound or transferred calls may be dropped. These issues are part of a national outage at … [Read more...] about College Station laboratory experiencing dropped calls

Filed Under: News

Diagnostic guidance: Hemorrhagic disease in deer

July 27, 2023 by Mallory Pfeifer

Female white-tailed deer looking to the side

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 … [Read more...] about Diagnostic guidance: Hemorrhagic disease in deer

Filed Under: DX Guidance, News Tagged With: cervid, deer, Virology, virus

Reminder: TVMDL no longer accepts hay and forage samples for nitrate and cyanide testing

July 24, 2023 by Mallory Pfeifer

Straw bales on farmland with blue cloudy sky

As Texas hits the middle of summer, many animal owners may be interested in testing for nitrates or cyanide. The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) accepts biological samples such as ocular fluid, serum, or urine for … [Read more...] about Reminder: TVMDL no longer accepts hay and forage samples for nitrate and cyanide testing

Filed Under: News, Test Catalog Updates Tagged With: cyanide, nitrate, summer, toxic plants, toxicology

Kleinhenz joins Canyon laboratory as veterinary pathologist

July 13, 2023 by Mallory Pfeifer

woman with short brown hair wearing a blue shirt smiling for a portrait

On July 1, Katie Kleinhenz, DVM, MS, joined the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in Canyon as a veterinary pathologist. In 2002, Kleinhenz earned a bachelor’s degree in animal science from The Ohio State University. … [Read more...] about Kleinhenz joins Canyon laboratory as veterinary pathologist

Filed Under: New Hires & Promotions, News Tagged With: canyon, pathologist, pathology, veterinary pathologist

Thompson joins TVMDL Canyon as veterinary diagnostician

July 12, 2023 by Mallory Pfeifer

woman with brown hair and maroon shirt smiling for a portrait

Alexis Thompson, DVM, PhD, joined the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in Canyon as the laboratory’s bovine veterinary diagnostician on July 10. Thompson graduated from the University of Kentucky with a bachelor’s … [Read more...] about Thompson joins TVMDL Canyon as veterinary diagnostician

Filed Under: New Hires & Promotions, News Tagged With: bovine, canyon, food animal, veterinary diagnostician

Juvenile lymphoma in an Angus calf

July 11, 2023 by Mallory Pfeifer

Black calf getting licked by mother in green field

Juvenile lymphoma in an Angus Calf Julie Piccione, DVM, MS, DACVP and Jessie Monday, DVM, MS, DACVPM A veterinarian was called to examine a 5-month-old Angus calf due to weight loss and lethargy. On physical examination the calf had a temperature … [Read more...] about Juvenile lymphoma in an Angus calf

Filed Under: Case Study Tagged With: Angus, bovine, calf, clinical pathology

West Nile virus: Diagnostic Guidance for Veterinarians

June 27, 2023 by Mallory Pfeifer

Chestnut horse in a pasture with golden back light.

Late summer is when the West Nile virus (WNV) poses the greatest threat to the health of horses in the United States. It’s important for veterinarians to educate horse owners concerning the prevention, detection and accurate diagnose of WNV. Yearly, … [Read more...] about West Nile virus: Diagnostic Guidance for Veterinarians

Filed Under: DX Guidance, News Tagged With: equine, horse, summer, virus, West Nile virus

TVMDL retires Bunyavirus and Cache Valley Virus PCR

June 23, 2023 by Mallory Pfeifer

Black calf in green pasture with one ear sticking up

The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) has retired the Bunyavirus and Cache Valley Virus PCR due to a decline in test requests. Clients interested in an alternative test option may consider TVMDL's Cache Valley … [Read more...] about TVMDL retires Bunyavirus and Cache Valley Virus PCR

Filed Under: News, Test Catalog Updates Tagged With: bovine, caprine, Molecular Diagnostics, ovine, Virology

Mitigating the threat of zoonosis during sample shipment to TVMDL

June 5, 2023 by Mallory Pfeifer

Woman with brown hair and white lab coat opening a box labeled as diagnostic specimen.

Zoonotic diseases are transmitted between animals and humans and can pose a significant threat to human health. It’s critical for veterinary clinic staff and TVMDL employees to handle animal samples in a way that minimizes the threat of zoonotic … [Read more...] about Mitigating the threat of zoonosis during sample shipment to TVMDL

Filed Under: News Tagged With: college station, samples, shipment, transmission, TVMDL, zoonotic, zoonotic disease

Dimitrov authors chapters in Merck Veterinary Manual over Newcastle disease

May 30, 2023 by Mallory Pfeifer

Indoors chicken farm, chicken feeding

Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) Assistant Agency Director for Microbiology and Research and Develop, Kiril Dimitrov, DVM, PhD, recently authored two chapters in the Merck Veterinary Manual. His chapters cover a … [Read more...] about Dimitrov authors chapters in Merck Veterinary Manual over Newcastle disease

Filed Under: News, Research & Publications Tagged With: Avian, chicken, Newcastle disease, poultry, Virology, virus

The passing of Dr. John Reagor, Veterinary Toxicologist Emeritus

April 21, 2023 by Mallory Pfeifer

John Reagor, PhD, Veterinary Toxicologist Emeritus, passed away on April 20. Reagor fervently served the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) as the agency’s toxicologist for 50 years. During his time at TVMDL he garnered … [Read more...] about The passing of Dr. John Reagor, Veterinary Toxicologist Emeritus

Filed Under: News

Too much (or too little) of a good thing: Thyroid disease testing at TVMDL

March 22, 2023 by Mallory Pfeifer

A severely overweight Welsh Corgi mixed breed dog with floppy ears standing outdoors

The thyroid gland serves an important function in the overall health of animals. However, it can also lead to a host of health issues if not functioning properly. The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) offers several … [Read more...] about Too much (or too little) of a good thing: Thyroid disease testing at TVMDL

Filed Under: DX Guidance, News Tagged With: canine, cats, clinical pathology, dogs, endocrinology, equine, feline, horses, thyroid

TVMDL adds three heavy metal panels to test catalog

March 22, 2023 by Mallory Pfeifer

hand scooping up animal feed from gray bucket

The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) has added three panel options for clients interested in testing for heavy metals. Previously, TVMDL offered one heavy metal panel for avian, mammalian, and non-animal samples. … [Read more...] about TVMDL adds three heavy metal panels to test catalog

Filed Under: News, Test Catalog Updates Tagged With: analytical chemistry, Avian, feed, heavy metal, mammalian, toxicology

Arnold contributes to evaluation of Salmonella prevalence in feeder cattle

March 16, 2023 by Mallory Pfeifer

Feedlot Cows in the Muck and Mud

Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) Client Services Section Head Dr. Ashley Arnold was lead author for a longitudinal evaluation of Salmonella in cattle. Environmental components and the cattle's lymph nodes were evaluated … [Read more...] about Arnold contributes to evaluation of Salmonella prevalence in feeder cattle

Filed Under: News, Research & Publications Tagged With: bovine, cattle, feeder, research, salmonella

Cytauxzoon felis: An Overview

March 16, 2023 by Mallory Pfeifer

Purebred cat lying in the house, siberian furry female

Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) Clinical Pathologist Dr. Yvonne Wikander recently co-authored a major review paper over Cytauxzoon felis, a tick-transmitted pathogen in feline. C. felis is the causative agent of … [Read more...] about Cytauxzoon felis: An Overview

Filed Under: News, Research & Publications Tagged With: blood, canyon, cats, clinical pathology, feline, journal

Martins joins College Station laboratory as Virology Section Head

March 2, 2023 by Mallory Pfeifer

man with glasses in blue shirt posing for a portrait

On March 1, Mathias Martins, DVM, MS, PhD, joined the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in College Station. He will serve as the Virology Section Head. Martins earned a Doctor of Veterinary Medicine from the Federal … [Read more...] about Martins joins College Station laboratory as Virology Section Head

Filed Under: New Hires & Promotions, News

Neurologic Disease due to Bovine Herpesvirus-5 (BHV-5) Infection in a 3-week-old Charolais mix calf

February 27, 2023 by Mallory Pfeifer

charolais calf standing outside in summer pasture

Neurologic Disease due to Bovine Herpesvirus-5 (BHV-5) Infection in a 3-week-old Charolais mix calf Kiana Jessie, BS, HT (ASCP); Pam Ferro, MS, PhD; Gabriel Gomez, DVM, PhD, DACVP Tissue samples from a three-week old, Charolais mix, male intact … [Read more...] about Neurologic Disease due to Bovine Herpesvirus-5 (BHV-5) Infection in a 3-week-old Charolais mix calf

Filed Under: Case Study Tagged With: anatomic pathology, bovine, calf, college station, histopathology, Molecular Diagnostics, pathology, Virology

Submitting high-quality clinical pathology samples for best results

February 10, 2023 by Mallory Pfeifer

Hand in white glove holding a red blood tube under a machine.

Clinical pathology testing is most of the widely used disciplines in diagnostics. As such, it's imperative to ensure samples are submitted with the end goal in mind: quality results. Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) … [Read more...] about Submitting high-quality clinical pathology samples for best results

Filed Under: News, Research & Publications Tagged With: clinical pathology, samples, test submission

Exercise caution prior to exhibition: Copper toxicity in show animals

February 10, 2023 by Mallory Pfeifer

Exercise caution prior to exhibition: Copper toxicity in show animals Guy Sheppard, DVM As youth prepare livestock projects for exhibition at stock shows across the state, it is important to keep in mind the possibility of copper toxicity, … [Read more...] about Exercise caution prior to exhibition: Copper toxicity in show animals

Filed Under: DX Guidance, News Tagged With: analytical chemistry, caprine, copper, goat, heavy metal, livestock, livestock shows, ovine, sheep, toxicity

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Latest News

  • Diagnostic guidance: Mycoplasma testing options September 18, 2023
  • Campbell joins TVMDL as veterinary diagnostician August 28, 2023
  • Shipping samples in the Texas heat August 17, 2023
  • TVMDL adds new testing for Neospora caninum and Toxoplasma gondii August 14, 2023
  • Epidemiology of systemic mycoses in Texas August 11, 2023
  • Historical overview of anthrax in Texas’ livestock population (1974-2022) August 11, 2023

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