Weekly Companion Animal News: November 2, 2026
AAHA to publish guidelines on canine and feline parasitology
The 2026 AAHA One Health Guidelines: Emerging Concerns in Canine and Feline Parasitology, launching Oct. 29, were created to help veterinary teams keep up with evolving threats. “The risk of emerging parasites and the associated obstacles which veterinary teams face have been growing for some time—or maybe they never left,” said guidelines co-chair Kathryn Duncan, DVM, PhD, DACVM (Parasitology), at the College of Veterinary Medicine at Oklahoma State University. “But with the re-introduction of the New World Screwworm to the U.S., I’d say these guidelines will be appropriately timed.” The guidelines call for a One Health approach to monitoring, diagnosing, and treating parasitic infections because emerging parasites affect not only animal health but also human health and the broader environment, added Jason Stull, VMD, MPVM, PhD, DACVPM, at the Atlantic Veterinary College at the University of Prince Edward Island.
Vets urged to promote preventive care to guard against feline parvovirus
Leaders of Cats Protection, a UK-based welfare charity, believe there is a “population dynamic,” with a large population of susceptible cats driving an increase in parvovirus cases in northern England and the midlands. “[Parvovirus] is a disease that really highlights those conversations that, as vets, we have every day with owners around preventive health care, such as vaccination, such as neutering,” said Cats Protection’s head of cat welfare engagement Sarah Merrett. “It highlights how those decisions for an individual cat can also have population-level impacts.”
ValiRx Plc launches company to address oncology in companion animals
The UK-based research firm said the new company – ValiRx Animal Health – will focus on translating scientific advances from human medicine into veterinary applications through strategic partnerships, licensing agreements and collaborative research programs. The launch comes at a time when veterinary oncology continues to face a significant shortage of comprehensive clinical evidence, biomarkers and large-scale treatment datasets compared with human medicine, according to the company.
Minoxidil, OTC hair growth medication, can be fatal to cats
The Spanish Agency for Medicines and Health Products (AEMPS) warns of the risk of pet animals coming into contact with topical medicines for human use that contain minoxidil. These medications can produce severe patterns of cardiovascular toxicity and fatal outcomes, especially in cats. Exposure can occur not only by direct ingestion, but also through contact with people using topical formulations through contaminated skin (e.g., hands) or contact with objects that have been exposed to the drug, such as pillows or other bedding. This evidence is based on data provided by, among others, the Animal Poison Control Center.
Parasight System and B&L Reference Laboratory offer IAHA members broad diagnostic portfolio
The partnership pairs Parasight’s Complete Lab System, which delivers most results in under 10 minutes during the visit, with B&L’s specialty send-out menu. Parasight’s system covers parasite detection, hematology, chemistry, immunoassay and urinalysis. B&L brings together full-service veterinary diagnostics, PIMS integrations, logistics support, pricing flexibility and specialist access. Both companies have exclusive partnership agreements with the Independent Animal Hospital Association.
Dog Aging Project enters new phase
New funding from the National Institute on Aging, part of the National Institutes of Health (NIH), will support the next five-year phase of the Dog Aging Project, a nationwide long-term cohort study of healthy aging in tens of thousands of companion dogs. Dr. Kate Creevy, a professor in the Texas A&M College of Veterinary Medicine & Biomedical Sciences (VMBS) and the Dog Aging Project’s chief veterinary officer, co-directs the project with Dr. Daniel Promislow, a senior scientist and faculty member at Tufts University.
Infectious cancer believed to be circulating among dogs in UK
The University of Cambridge’s veterinary school is offering clinicians free PCR-based testing for suspected canine transmissible venereal tumour (CTVT) testing in response to a recent case report confirming active transmission of the disease in the UK for the first time in 50 years. The rise in numbers is thought to be linked to the import of dogs from regions where CTVT remains endemic, particularly Eastern Europe. Although CTVT is highly treatable with vincristine chemotherapy, researchers fear many vets may be unfamiliar with its presentation.
Petszel introduces Adopter Hub post-adoption platform for shelter and rescue teams
Petszel introduced Adopter Hub, a feature of its post-adoption platform intended to give shelter and rescue teams an organized view of individual adopter experiences, with resources and response tools. Adopter Hub brings adopter details, survey responses and progress through the post-adoption program into one place. Staff can quickly see how things are going and access guidance when a personal touch could make a difference. Petszel delivers personalized, shelter-branded articles, videos and timely check-ins to help adopters feel prepared.





