1. opacification-the process of becoming cloudy or opaque. natural action, natural process, action, activity-a process existing in or produced by nature (rather than by the intent of human beings); the action of natural forces; volcanic activity.Translations.. opacification-the process of becoming cloudy or opaque. natural action, natural process, action, activity-a process existing in or produced by nature (rather than by the intent of human beings); the action of natural forces; volcanic activity. Translations.
A booster is a repeat of a previous vaccine that the dog has already received. The goal of the booster is to boost the dogs immunity up to an effective level. Older dogs need boosters every 1-3 years because otherwise their immunity would start to drop.
April 15, 2009. Annual shots or vaccinations are broken into two categories, core and noncore. Core shots are those that should be given to every dog. Noncore shots are given to dogs based on a determination made by the veterinarian and may depend on geographic concerns and other health or living conditions of the dog. This guide will help you understand why your dog needs the core shots yearly.