What is Shelf-life of Covid-19 Vaccine? Covaxin Vaccine Shelf-life | Vaccine India Latest News What is the shelf life of Covid-19 vaccines? After the adults getting vaccinated across India, now teenagers in the 15-18 age group are receiving their first dose of Covid-19 Covaxin vaccines. While, recently, some concerns were raised about ‘expired’ Covaxin being administered to children. The government later clarified that the shelf life of Covaxin vaccine had been extended from nine months to 12 months in November by the national regulator, Central Drugs Standard Control Organisation, or CDSCO, based on a comprehensive analysis and examination of stability study data furnished by the vaccine manufacturers, and therefore there was nothing wrong with these batches. With the shelf-life extension, hospitals could utilise the stock that was nearing expiry and avoid vaccine wastage. Is this extension of date a special favour given to Covaxin? No, CDSCO has earlier approved the extension of shelf life of Covishield as well, and nothing special had been done to Covaxin. What is the ‘shelf life’ of a vaccine? Like any other medicinal product, vaccines come with a date of expiry and shelf life too. The constituents of a vaccine can go bad over time because of slow chemical reactions and lose efficacy. A series of tests are designed to obtain information on the stability of a vaccine in order to define its shelf life and utilisation period under specified packaging and storage conditions. And depending on the nature of the antigen and other components, and the manufacturing process, stability parameters are selected on a case-by-case basis, the WHO guidelines state. How is shelf life calculated? As per experts, Shelf life is calculated by storing the product at different temperatures for various lengths of time and then testing its effectiveness. According to the WHO guidelines, the shelf life of a vaccine is the period of time during which the vaccine, if stored correctly, is expected to comply with the specification, as determined by stability studies on a number of batches of the product. The shelf life is used to establish the expiry date of each batch. #Covaxin #Vaccination #LatestNews About Channel: India.com covers breaking news, latest news, politics, entertainment and sports from India & World. Follow us on:- Download India.com app Link- http://onelink.to/uqwaee International Users App Link- http://onelink.to/prvyta Web: http://www.india.com Facebook: / indiacom Twitter: / indiacom Instagram: / indiadotcom