Personally, I would not have a 5-in-1 shot given. Besides rabies, there are only 3 core vaccines: Distemper, Hepatitis (adenovirus-2), and Parvovirus.
There are 4 non-core vaccines that should only be given on a regional basis in areas where the diseases are known to be a true risk: Leptospirosis, Lyme, Bordetella (kennel cough), and Parainfluenza.
Then there are the vaccines that are not recommended under any circumstances: Advenovirus-1, Coronavirus, Giardia, Crotalus atrox Toxoid (rattlesnake), and Porphyromonas (periodontal disease).
I'm assuming the 5-in-1 includes the 3 core vaccines, but what are the other two? Down here in the U.S., many vets include the Coronavirus which is one of the "non-recommended" vaccines.
Also, the American Animal Hospital Association (AAHA) now recommends vaccinations no more often than every 3 years after the initial round of puppy shots. Here's a link to their 2011 Guidelines: https://www.aahanet.org/PublicDocuments/CanineVaccineGuidelines.pdf