Vaccinations and parasite control are the two foundations of prevention for every dog — and the two most common sources of questions from guardians. In this guide you'll find the core vaccination schedule, what applies specifically in Greece, and how to organize antiparasitic protection year-round.

Core vaccines protect against the most serious and contagious diseases and apply to every dog regardless of lifestyle: distemper, parvovirus, infectious hepatitis and rabies. They're usually given as one combination shot.

There are also non-core vaccines, which your vet recommends based on your dog's lifestyle: leptospirosis (for dogs with access to water and the outdoors) and kennel cough (for dogs who frequent parks, pet hotels or shows).

The exact schedule is set by your vet based on the puppy's age, health and history. Until the core course is complete, avoid walks in public spaces and contact with unknown dogs — parvovirus is extremely persistent in the environment and dangerous for unvaccinated puppies.

After the first year, most vaccines are repeated on an annual or three-year basis, depending on the product and your vet's judgment. But the annual visit isn't just about the shot: it's also the general check-up that catches problems before they become serious. Don't skip it, even if no vaccine is "due".

Rabies vaccination is mandatory for dogs in Greece. It's also a requirement for travel — both abroad and for the pet passport — and you may be asked for it during checks along with the health book. Keep the renewal date recorded.

Internal deworming protects against gastrointestinal parasites (worms) and starts in the puppy's first weeks of life, with repeat doses set by your vet. For adult dogs the usual recommendation is every three months — more often if your dog hunts, scavenges on walks or lives with young children.

Fleas, ticks and sandflies aren't just a nuisance — they transmit serious diseases, most notably leishmaniasis (kala-azar) via the sandfly. In Greece, an antiparasitic with proven sandfly-repellent action is critical from spring through autumn, and many vets now recommend year-round coverage because of the mild winters. Collar, spot-on or tablets — your vet will suggest the right combination.

Mild drowsiness, reduced appetite or soreness at the injection site for 24-48 hours are normal reactions. Contact your vet immediately if you see facial swelling, repeated vomiting, difficulty breathing or severe lethargy — rare but serious allergic reactions need urgent care.