CAHSS Vector-Borne Diseases Network

Mosquitoes, ticks, flies and fleas are more than annoying pests. These insects, amongst others, are vectors that can spread disease with a single bite. Working together with our partners and collaborators, CAHSS is looking closely at changing vector ranges and disease transmission risks across North America, developing an understanding on how climate change is affecting species ranges and survival, studying animal-vector interactions and sentinel patterns, and planning protection of unsuspecting animals from infection and outbreaks.

New World Screwworm Resources

Default Nws4

When is a Wound More Than a Wound?

Know what to look out for!

Default Nws5

New World Screwworm 101

Learn more about this parasitic fly!

Default Nws1

Travelling with Animals?

Check for New World Screwworm before, during and after you return to Canada.

Default Nws3

Travelling with Horses?

Your horse can bring more than a ribbon home.

Default Nws2

Bringing Dogs into Canada?

Be aware of New World Screwworm.

Longhorned Tick Resources

Default Lht Birdbanders

For Bird Banders

Asian longhorned tick infographic for bird banders.

Default Lht Hunters

For Hunters

Asian longhorned tick infographic for hunters.

Default Peticides And Pets

For Pet Owners

Safe pesticide use for pet owners.

Hexagon shaped network logo with a blue outline of a mosquito and a tick

For Pet Owners

Protect your pet and Canada from the Asian longhorned tick.

Default Alt Horse   En 2

For Horse Owners

Protect your horse and Canada from the Asian longhorned tick.

Default Border Tick Poster   En 2 2

Crossing the Canadian border with animals?

Protect them from ticks!

Default En Alht Factsheet Dec 5 2025

Protect your Herd

How to protect your herd from the Asian longhorned tick. 

Hexagon shaped network logo with a blue outline of a mosquito and a tick

Preparing in Canada for the Longhorned Tick

As an early step in addressing the emerging risk of Longhorned Ticks, the Canadian Animal Health Surveillance System (CAHSS) vector borne disease network engaged in a process to review publicly available information that could inform planning, and to use this information to develop a list of recommendations.

see what is new with vector-borne diseases in Canada

Hexagon shaped network logo with a blue outline of a mosquito and a tick

External Resources

Links to Canadian vector-borne disease resources.

Hexagon shaped podcast logo with a blue outline of a microphone

Animal Health Insights

A podcast series from CAHSS has been a useful tool to connect producers, veterinarians and pet owners on topics of animal health, disease surveillance and disease management practices across Canada.

other surveillance tools