PROTECTIVE EFFICACY OF NANOCOVAX VACCINE DOSE 25µg AGAINST COVID-19 IN VIETNAMESE VOLUNTEERS
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Abstract
Objectives: Evaluating the protective efficacy of Nanocovax vaccine dose 25µg against COVID-19 in Vietnamese volunteers aged 18 years and older. Methods: Phases 2 and 3 randomized-control doubled-blinded clinical trial studies were conducted on healthy volunteers aged 18 years and older who received either the study vaccine or a placebo according to a 2-dose regimen, 28 days apart, to evaluate the protective efficacy of Nanocovax vaccine against Covid-19 infection. Result: Efficacy against clinically symptomatic COVID-19 of any severity approximately two months after the second vaccination was 89.63% (51.97 - 97.76) and gradually decreased over time. The vaccine effectively prevents moderate progression of COVID-19 disease, death, and mortality, reaching 93.22% (70.16 - 98.46); Prevention of severe progression and death reached 95.67% (66.48 - 99.44). Conclusion: Nanocovax vaccine with a dose of 25µg effectively protects against severe progression of COVID-19 in volunteers.
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Keywords
Vaccine Efficacy, COVID-19, Nanocovax
References
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