Taking a longer pause between the two required shots of Russia’s Sputnik V vaccine against Covid-19 to speed up the global immunization campaign is viable, and may even build up a stronger immune response, its developer has said.
Like most other jabs designed to fight the coronavirus, Sputnik V is delivered in two injections administered weeks apart, with a booster shot ramping up the defense provided by the initial dose. Some countries such as Britain successfully experimented with an alternative immunization regimen, prioritizing giving as many people as possible the first jab and postponing the second one beyond what is recommended by producers.
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