The vaccine batches used in the preclinical tests and clinical studies published in the Lancet do not have the same characteristics and properties as the vaccine batches imported into Slovakia. According to published reports, Sputnik V should be used in about 40 countries around the world, but these vaccines are only associated with the name. The comparability and consistency of different batches produced at different locations has not been demonstrated. In several cases, they appear to be vaccines with different properties (lyophilisate versus solution, single-dose ampoules versus multi-dose vials, different storage conditions, composition and method of manufacture).
The assessment of quality, efficacy and safety is always performed separately for a specific vaccine in a specific pharmaceutical form and composition. Therefore, information on the use of Sputnik V in other countries cannot be applied to batches of vaccine imported into Slovakia.