Which of the following was NOT included in the core vaccines given to dogs?

The core vaccines for dogs are those that are considered essential for the health and well-being of all dogs, regardless of their lifestyle or environment. These vaccines include Canine Parvovirus, Canine Distemper, and Rabies. Each of these diseases poses a significant risk to dogs and can lead to serious health issues or even death.

Canine Parvovirus is a highly contagious virus that affects dogs' intestinal tracts and can cause severe gastrointestinal disease. Canine Distemper is a viral disease that can affect a dog's respiratory, gastrointestinal, and central nervous systems, leading to a range of serious health issues. Rabies is a fatal viral disease that affects the central nervous system and is transmissible to humans, making vaccination crucial not only for dog health but also for public safety.

In contrast, West Nile virus primarily affects birds and is transmitted by mosquitoes, with only occasional cases reported in mammals, including dogs. It is not considered a core vaccine for dogs, which is why it is the correct answer to the question.