Rabies surveillance in BC Melissa McLaws, DVM, PhD 14 th Zoonoses Symposium November 10, 2015
Outline Rabies: surveillance and response in BC Results from 2015 Case Studies: Theresa Burns
Acknowledgements BCCDC: Drs. Eleni Galanis, Jennifer Koeman Ministry of Agriculture: Drs. Brian Radke, Jane Pritchard Ministry of Environment: Dr. Helen Schwantje College of BC Veterinarians: Dr. John Brocklebank Centre for Coastal Health: Drs. Theresa Burns and Tyler Stitt Colleagues in other provinces....
Rabies Rabies virus, Rhabdovirus family Zoonotic Transmitted between mammals, through saliva or nervous tissue, usually by a bite Almost all human cases from dog bites
Rabies Deadliest disease on earth: 99.9% fatality rate ~59,000 human deaths/year, about 60% of these in children under 5 years About 95% human deaths in Africa and Asia
Rabies in BC In BC, bats are only known reservoir Other parts of Canada also have fox, skunk, raccoon 4-8% of submitted bats test positive Less than 0.5% all bats positive Others mammals infected with bat variant virus Cats, horse, skunk, beaver 1 human case in BC, 2003
Consult BCCDC Public Health Vet Yes NO Veterinary Assessment Possible rabid animal (bat, other wildlife, domestic animal) Human contact?Human and animal contact? Domestic animal contact Refer human to health authority If bat/wildlife available, consult wildlife vet
Yes NO Suspect animal available for testing? VACCINATE Up-to-date on vaccinesVaccinated: out of date Never vaccinated No further action Negative Domestic animal exposure? Submit to CFIA for testing Veterinary public health management Positive Vaccination status? Yes
Rabies in BC * ** * 1 cat 2007 ** 4 skunks 2004
2015 results: Calls 107 calls January-October Suspect animal: 72 bats, 10 cats, 12 dogs, 7 raccoons 54% of calls were “a cat caught a bat” 70% calls from vet clinics Vaccination Status
2015 results: Laboratory SpeciesNegPosUnsuitableTotal BAT BOVINE11 CAT12 COYOTE11 DOG55 HUMAN11 RACCOON11 Total
2015 results: Laboratory ContactNegPosUnsuitableTotal Animal Both Human21324 None459 Total Reason for Submission
2015 results: Laboratory Lab result Negative Positive Unsuitable
Discussion Intersection of human and animal health Puppies/kittens too young for vaccination Exposures with wildlife other than bats: Raccoons, skunks, squirrels
Discussion Apparent low vaccination coverage in dogs and cats Cost Anti-vaccine? Risk perception Owners and vets RISK Probability Consequences RISK Probability Consequences
More than rabies… Animals as sentinels for human health risks Reportable zoonoses Anaplasmosis, blastomycosis, leptospirosis, echinococcus, balisascaris…. Data: pets, wildlife (incl urban), livestock… Food safety issues Salmonella spp Urban agriculture ….
Thank you for the attention! Any questions?