Vials of Chinese Sinovac's CoronaVac vaccine against coronavirus disease pictured inside the newly inaugurated production lab designated to manufacture the vaccine, in Constantine, Algeria September 29, 2021.
However, another study in December found that Sinovac's two-dose shot followed by a booster dose of Pfizer-BioNTech's vaccine showed a lower immune response against the Omicron variant compared with other strains.
Any chance we will have vaccines in future which provide antibodies for like years
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