The great majority of Lyme disease cases are due to the bite of a very tiny tick called the deer tick, or black-legged tick.

Lyme disease: maligned and misunderstood

Vet Advice with Dr. Ron Clarke

There is nothing good about Lyme disease, but it’s time to sit and make sense of what Lyme disease is and what can be done about it. Lyme disease is spreading in Canada. The disease itself is caused by a bacteria, Borrelia burgdorferi (Bb) spread from ticks seeking a blood meal. It’s not a serious cattle disease, […] Read more

Sometimes there are no answers to troubling questions

Sometimes there are no answers to troubling questions

Animal Health with Dr. Ron Clarke

Life is unpredictable. The hinterland between known and unknown is often blurred. Despite our techno-ability to scrutinize things at a molecular level, the ability to provide answers to troubling questions is sometimes beyond reach. Take, for example, the year-long investigation into TB discovered in an Alberta cow shipped to the U.S. for slaughter. The discovery […] Read more


One common vector of transmission for tularemia is a tick.

Tularemia, a potentially serious and life-threatening disease

Vet Advice with Dr. Ron Clarke

Tularemia, sometimes called rabbit fever, is an uncommon but debilitating disease spread from animals to man caused by the bacteria Francicella tularensis. It can be found in a variety of animal hosts, notably lagomorphs (rabbits and hares), aquatic rodents (muskrats, beavers, and water voles), other rodents (water and wood rats and mice), squirrels, and cats. […] Read more

Understanding where ticks such as this Rocky Mountain wood tick are and what influences their population will help develop strategies to avoid spreading of tickborne diseases.

A story to make your skin crawl

Research on the Record with Reynold Bergen

Cattle won’t be the only creatures enjoying fresh pasture this spring; so will the Rocky Mountain wood tick and the American dog tick, which can transmit anaplasmosis and other bloodborne diseases. Anaplasmosis was removed from the federally reportable disease list in 2014, so the government is no longer responsible for dealing with anaplasmosis outbreaks or […] Read more


Black-legged tick.

Ticks join new world order in infectious disease

Though only two varieties exist, they are responsible for a wide range of diseases

By scientific estimate, ticks have been around for 100 million years. They represent the most famous blood-sucking arachnids, (eight-legged organisms). The world is now in unchartered territory when it comes to infectious diseases. Over the past century, the number of new infectious diseases cropping up each year has nearly quadrupled. The number of outbreaks per […] Read more

Anaplasmosis is the most common tick-transmitted disease of cattle worldwide.

Did we walk away from anaplasmosis too soon?

Vet Advice with Dr. Ron Clarke

As of April 1, 2014, anaplasmosis in cattle was removed from the list of federally reportable diseases. The federal government is no longer involved in controlling the disease. Import controls were basically removed. Cows purchased from infected areas of North America are no longer tested before entering Canada despite the fact that testing reduces the […] Read more