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Sinovac's vaccine is at least 98.9% effective in producing antibodies among people aged 3 to 17
Published on: 2021-07-20
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Sinovac COVID-19 vaccine has been approved for emergency use among population aged between 3 and 17 years old, after phase-II clinic trial data suggests it is at least 98.9 percent effective in producing antibodies, a higher efficacy than in population over 18 years old.
 

The experiment included 180 volunteers within the age group. Three months after vaccination, the production of antibodies among population aged 3 to 17 years old was 98.9 to 100 percent depending on the dosage of the inoculation, the company announced on Monday.
 

The result is better than on population aged above 18 years old, said Sinovac, noting that data suggests that the vaccine is stable and effective among young people.
 

The WHO validated in June the Sinovac COVID-19 vaccine for emergency use in people 18 years and older, noting that efficacy results showed that the Sinovac vaccine prevented symptomatic disease in 51 percent of those vaccinated, and prevented severe COVID-19 and hospitalization in 100 percent of the studied population.
 

Sinovac was approved for emergency use in May for people aged between 3 and 17. Multiple provinces and cities in China have inoculated teenagers aged 15 to 17 since July and are planning to expand inoculations to more people, said the company.
 

科兴新冠疫苗3-17岁人群接种效果公布:优于成年人

科兴20日发布3-17岁人群临床研究结果数据。
 

科兴称于近日获得了旗下北京科兴中维生物技术有限公司研制的新冠灭活疫苗克尔来福在3-17岁人群中初步的免疫持久性数据:基于3-17岁儿童和青少年Ⅱ期临床研究中180名志愿者接种2剂疫苗后3个月的免疫持久性分析,克尔来福全程免疫3个月后,3-17岁人群的中和抗体阳性率分别为98.9%和100.0%;新冠病毒中和抗体几何平均滴度(GMT)水平与接种后28天接近,仍大幅高于成人、老年人接种后28天的GMT水平。
 

这表明克尔来福在未成年人群中具有稳定、良好的免疫原性,且疫苗接种后的效果优于18岁及以上人群。

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