There is a risk of insect or tick-borne diseases in some areas of Southern Europe. This includes diseases such as Crimean-Congo haemorrhagic fever, leishmaniasis and West Nile virus. All travellers should avoid insect and tick bites day and night. There are no vaccinations (or medications) to prevent these diseases.

For most travelers coming from North America, the UK, or the EU, there are no mandatory vaccinations (injections) required for entry into Greece. However, health organizations like the CDC and WHO strongly recommend that you are up-to-date on routine vaccinations, such as Measles-Mumps-Rubella (MMR), Diphtheria-Tetanus-Pertussis, and Polio. Depending on your specific travel plans, a Hepatitis A vaccine is often recommended because it can be contracted through contaminated food or water, regardless of where you are eating. If you plan on doing extensive hiking or spending time in rural areas where you might interact with wildlife, a Rabies vaccination might be considered, though the risk to the average tourist is extremely low. Always consult with a travel clinic at least six weeks before your trip to ensure you have the most current health advice for your specific itinerary.