Parasitology

Veterinarians gain a new FDA-approved generic dewormer, Defendazole, for the treatment and control of various worms in cattle and goats.

Tips from Susan E. Little, DVM, PhD, DACVM (Parasitology), that break down what really matters in tick-borne disease management.

The American Heartworm Society has generated data-driven maps every 3 years since 2001.

Christopher Lee, DVM, MPH, DACVPM, DACVM (Parasitology), explains why ticks and other parasites are expanding their range, why year-round isoxazoline use matters, and why indoor pets still face parasite risk.

Christopher Lee, DVM, MPH, DACVPM, DACVM (Parasitology), explains that indoor pets still face vector exposure and that year-round isoxazoline protection reduces parasite burden and helps protect household members.

Credelio Quattro (Elanco) was previously approved by the FDA for treatment of infestation for 6 other parasites in dogs.

Susan E. Little, DVM, DACVM (Parasitology), explains how timing shapes transmission, how to remove ticks safely, what to do with an antibody-positive but well dog, and why year-round tick control protects pets and people.

Christopher Lee, DVM, MPH, DACVPM, DACVM (Parasitology), argues for year-round isoxazoline use, noting that interrupting the flea life cycle protects both pets and people.

Susan Little, DVM, PhD, DACVM (Parasitology), explains how transmission timing differs by pathogen, demonstrates safe tick removal, and shows why year-round systemic tick control plus targeted vaccines best protect pets.

A concise Q&A for veterinarians summarizing the identification, reporting, treatment, prevention, and practical next steps as the New World screwworm approaches the US border.

The FDA determined that Credelio Cat may be effective in treating New World screwworm infestations in cats and kittens.

The program is used to combat New World screwworm, a global health threat.

The organization elected new officers and board members during its 2025 Triennial Heartworm Symposium.

The 2 drugs from Elanco now offer protection from emerging tick species and aid in the prevention of Lyme disease in canines.

The authorization is the first of its kind for dogs, as health officials track New World screwworm cases near the US-Mexico border.

This is the first known occurrence of the Asian longhorned tick in the state.

These diagnostic tools were developed by MiDOG Animal Diagnostics and the Harold W. Manter Laboratory of Parasitology in Nebraska.

What if a breath is all it took to detect a parasite? Global Innovative Platforms recently completed a study of a potential solution.

The long-lasting injection was first cleared in Australia and New Zealand in 2023.

Most adult screwworms travel less than 10 miles to find a host. The greater risk comes from the movement of cattle, deer, and other hosts, explained Christopher Lee, DVM, MPH, DACVPM, in this Vet Watch update.

Meghan Herron, DVM, DACVB, FFCV, discusses the most concerning infectious disease and parasites for which protective treatments are available, in a dvm360 interview.

The case is the closest the parasite has come to the US during the current outbreak.

Elanco Animal Health is pursuing international approvals for a parasite protection therapy and a dermatology drug.

The parasiticide also treats Dermanyssus gallinae, also known as red mites.

The first human case detected in US, plus a summary of how the US is responding to New World screwworm.