Usually it varies from vet to vet but yes, you have to get him the 5 x 1 shot which would protect him from distemper, hepatitis, leptospirosis, parainfluenza and parvo virus. Keanu already got his shots for this one thrice but the vet advised him to get another booster shot next week.
Then there's his rabies vaccine which would start at 4-5 months.