First of all, do not get excessively scared. It is not a common condition is Canada.
It happened 4 days ago.
Since the dog is available for observation, please observe it carefully for a total of 10 days for signs of rabies.
Signs of rabies in animals: It appears in two different forms:
Furious rabies in which the animal changes behaviour, becomes restless, wanders aimlessly, and bites any animal, person, or object in its way. Eventually the animal becomes paralyzed and dies.
Dumb rabies in which an animal changes behaviour, becomes withdrawn or more affectionate, tries to hide, has difficulty swallowing, and dies after a few days without ever becoming violent. However, dogs usually become
excitable, and may be vicious, wander aimlessly, and bite for no reason.
In Canada
Human rabies is exceedingly rare in Canada. Only 21 cases have been reported since 1925 and just 6 since 1960!
Look at this in the light of this information: Worldwide, there are more than 50 000 human rabies deaths reported annually, with about 30 000 deaths in India, and the rest occurring primarily in Southeast Asia, Africa, and Latin America.
The dog seems to lie around the house a lot, lazy and when it goes on walk it's kinda energetic
That seems normal. But have you noticed any change in its behavior? That is more important.
It was 2 to 4 years ago.
Ideally dogs need to get an annual booster dose. However, it has at least received
some immunization.
And what if I get all of the necessary shots for rabies and i'm not infected, will anything happen?
It is called Post-exposure prophylaxis. When a possible exposure to rabies virus is suspected, and after a physician's evaluation, post-exposure prophylaxis is given. Earlier vaccines had lot of adverse effects. The newer vaccines (human diploid cell vaccine - HDCV) are quite safe and do not have significant adverse effects. Nothing unusual will happen if you receive it without actual infection. That is a very common situation.
The post-exposure prophylaxis regimen consists of one dose of immune globulin and five doses of rabies vaccine over a 28-day period. Doses of rabies vaccine are given on days 0, 3, 7, 14, and 28. They are relatively painless too.
Post-exposure prophylaxis is a medical urgency and you must contact your GP/ physician as soon as possible for a thorough evaluation.
Action plan for you:
1. See your GP/ Physician
2. Observe the dog for 6 more days
3. Remember that rabies is not common in Canada. Even when it is seen, exposure is most often through wild animals than domestic animals.
Wish you the best,
Regards
Shashikiran