Novavax, another American start-up, has had similarly promising results using “virus-like particles” (made of non-infectious viral proteins purged of genetic material).

美国另一家新型企业—诺瓦瓦克斯公司用类病毒物质（即未感染的病原蛋白，且去掉其遗传物质）得到了差不多的结果，都很有前景。

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It spreads like other respiratory viruses, through releasing viral particles from coughing and sneezing which then find new hosts in the general vicinity.

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