Vaccines - to use single dose / multidose vials? Have you noticed your vet giving a shot to your animal? Do you prefer a single dose vial or a multidose vial for your pet? Technically speaking " veterinarians are advised to use only single dose vials for many reasons." Says, Kriks Veterinary Manuel. Repeated poking of the vial closure makes it more permeable and more susceptible to contamination. Further, the adjuvants and other inert constituents depending upon their density, settle at different layers and each vaccine dose will give different potency. The repeated pokes also arises doubt about the thermal shocks for the refrigerated vaccine content. The general view is that, whenever a contamination occurs, without even veterinarian knowing it, the vaccine is evenly distributed to his clients. This holds good for non-maintenance of cold chain at various trade channels or at professional hands. The issue is that, not many professionals appreciate above facts while using vaccines for their clients. Nevertheless, multi-dose vials give considerable savings for the companies and customers in reducing the packing costs and utilizing lesser resources. This savings are indeed transferred to the end user. |
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