Sputnik V to soon offer booster shot to other vaccine makers for Delta variant of Covid-19
Gamaleya Institute, where Sputnik V was developed, did not share the details about which manufacturers will receive these booster shots or how effective they will be against the Delta variant
A booster shot of Sputnik-V specifically designed to counter the more lethal Delta variant of novel coronavirus will be available soon. The booster shot will be offered to other vaccine manufacturers, RDIF stated in a tweet.
The decision to provide the booster shot for Delta variant to other makers is not a surprising development. Sputnik V developers have been longstanding advocates of vaccine cocktails for improving efficacy. Gamaleya claims the jab iyself is the first Covid-19 vaccine cocktail as it uses heterogeneous boosting with 2 shots by 2 different adenoviral vectors Ad5 and Ad26.
Back in November 2020, Gamaleya had offered to share one of its two human adenoviral vectors with AstraZeneca to increase the efficacy of latter's Covid vaccine. Using two different vectors for two vaccine shots will result in higher efficacy than using the same vector for two shots, it had claimed.
The proposal had been accepted, before trials for the combined Sputnik-AstraZeneca vaccine were put on hold briefly towards the end of May. Earlier in June, news agency Reuters confirmed that the combined shot did not have any adverse effects on the test subjects.
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