There are some essential vaccines that every dog should have, whether they’re a puppy or an adult. These are known as core vaccines, and they protect against highly contagious and potentially deadly illnesses:
Canine Distemper Virus (D) Affects multiple organs and can be fatal. Given during the puppy course and then every 3 years.
Infectious Canine Hepatitis (H) Affects the liver, kidneys, and eyes. Given at the puppy stage and then every 3 years.
Canine Parvovirus (P) Highly contagious, causing severe vomiting and diarrhoea. Part of the puppy course and repeated every 3 years.
Leptospirosis (L) A bacterial disease that can damage the liver, kidneys, and other vital organs. Given during the puppy course and then annually.
Note: Some vaccines, like those for Leptospirosis, come in different combinations to cover various strains.

