CNN: 二阶 Covid-19 疫苗可增强保护作用，但针对 奥秘克绒 BA.4 和 BA.5，并不优于疫苗原始配方

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CNN: 二阶 Covid-19 疫苗可增强保护作用，但针对 奥秘克绒 BA.4 和 BA.5，并不优于疫苗原始配方

Updated Covid-19 vaccines boost protection, but may not beat original formula against BA.4 and BA.5, early studies suggest | CNN

The updated Covid-19 booster shots appear to work about as well against the BA.4 and BA.5 Omicron subvariants as the original boosters they replaced, according to two new studies from research teams at Harvard and Columbia universities.

www.cnn.com

 

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关于二价疫苗没有争议。 它和原版一样好，但没有更好。 此消息来自初步研究。