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主题:【原创】新冠疫苗之谜:灭活Vs mRNA -- 菜根谭

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家园 【整理】科兴疫苗6个月后对delta变种有效力降低到48%

Sinovac vaccine's efficacy vs Delta 'wanes' after 6 months — expert

这是二手新闻,据说泰国研究发现:科兴疫苗,

有效力,对原版病毒98.33%, 对alpha 75%,对beta 70%;

在接种6个月之后,针对delta变种有效力降低到48.33%。

虽然全文是鼓吹加强针,但是如果科兴疫苗在接种6个月之后还能保持48%的有效力,那说明灭活疫苗表现相当不错。

对比下,根据卡塔尔的数据,辉瑞的mRNA疫苗在接种3个月之后,面对delta有效力降低到30%;在接种6个月之后,有效力降低到0%。

辉瑞mRNA疫苗面对delta的抗感染能力基本上在14周(3个月)之后就下降到30%,6个月就失效。

灭活疫苗很不错啊

Metro Manila (CNN Philippines, August 30) – The guidelines on giving booster shots to healthcare workers and the elderly who received Sinovac COVID-19 vaccine should be reviewed after recent studies showed its "waning" efficacy against the Delta variant, a vaccine expert said on Monday.

Infectious disease specialist Dr. Rontgene Solante shared a recent study in Thailand which showed that while the efficacy of Sinovac vaccine against the original coronavirus strain is 98.33%, it went down to 75% for Alpha variant and 70% for Beta variant.

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