Parasitology

In a session at the 2026 Fetch National Harbor Veterinary Conference, Nathanael Oster, VMD, MBA, walked attendees through the biology, diagnosis, and treatment of the flea tapeworm in dogs and cats, including why cats are affected more often than dogs.

Christopher Lee, DVM, MPH, DACVPM, DACVM (Parasitology), discusses the clinical significance of Toxoplasma gondii, when veterinary professionals should consider testing, and how to communicate the risks of exposure to clients.

New CDC and climate data show tick exposure and pollen seasons are both stretching well beyond their traditional windows, a trend animal health company Elanco says is also increasing demand for veterinary care.

A survey of more than 27,000 canine fecal samples found the zoonotic tapeworm only in coyotes and gray foxes, pointing to a diagnostic gap that routine fecal flotation is unlikely to close.

The emergency use authorizations mark the first FDA-authorized prevention option for New World screwworm in dogs and cats.

The action lifts NWS-related movement requirements in parts of 5 Texas counties, marking the first infested-zone releases in the state since the pest's June 3 detection in a Zavala County calf.

Texas A&M researchers mapped the range of a native soft tick with a documented history of vector competence for African swine fever.

The authorization allows cattle producers to use the generic ivermectin injection without a prescription to help prevent potentially fatal New World screwworm infestations.

After approximately 160 black skimmer chicks died in 2 Texas nesting colonies, researchers identified 2 previously uncharacterized lineages of the Eimeria parasite.

The Direct Support Grant will fund parasiticides and veterinary care for dogs, cats, and equines as the flesh-eating parasite spreads.

The new surveillance tool combines confirmed detections, environmental conditions, and media reports to help public health officials identify emerging New World screwworm threats and estimate where cases could appear next.

Suffolk County, New York, has logged 4 probable or confirmed human cases of tularemia this year. Here's what veterinary teams should know about the zoonotic disease, including its clinical signs, diagnosis, and treatment in animals.

Drawing on insights shared by federal officials at the USDA, FDA, and CDC during a joint session at the 2026 AVMA Convention, along with the latest federal guidance, agency data, and published resources, this report explains what veterinarians need to know about the flesh-eating parasite.

Cyclospora cayetanensis is all over the headlines amid a 2026 national surge and a Midwest outbreak. So should veterinary teams be worried about dogs and cats as carriers, reservoirs, or patients?

On the latest episode of Vet Watch from dvm360, parasitologist Kathryn E. Reif, PhD, MSPH, separates science from panic on New World screwworm—from myths and clinical signs to sterile fly production and food safety.

A fatal feline case near Oklahoma City spotlights cytauxzoonosis, a fast-moving, often-lethal tick-borne disease with a narrow treatment window.

Texas A&M researchers detected Rickettsia typhi and Bartonella species in fleas pulled from domestic cats in the Rio Grande Valley, reinforcing the case for year-round parasite control.

Embrace Pet Insurance reports diagnosis claims rising sharply across regions, seasons, and age groups, suggesting that long-held assumptions about heartworm risk may be outdated.

dvm360's weekly tracker of confirmed New World screwworm (NWS) detections in the US. Here's the update for July 3, 2026.

Experts recommend that veterinary teams reassess tick prevention as shifting ranges and emerging pathogens change exposure risks for animals and people.

After nearly 60 years of successful eradication in the US, the New World screwworm has reemerged, prompting renewed surveillance and containment efforts.

A dozen VET members from Texas A&M University deployed June 13, 2026 in support of Texas Animal Health Commission field operations.

Elanco's TruCan Ultra Lyme-L4 is a combination therapy that aims to protect dogs against increasing health risks.

New World screwworm cases rise to 9 as FDA emergency authorizes OTC treatment for pets, plus the launch of a generic for congestive heart failure in dogs.

A list of available treatments for screwworm infestations in cattle, horses, sheep, goats, deer, swine, cats, dogs, exotic, zoo, and wildlife species, as well as guidance for practitioners before using these products.