这就是所谓群体免疫力。
“群体免疫性”低。
We would provide a herd immunity against every single strain conceivable.
我们将提供一种应对所有变种的群体免疫效应。
The vaccination rate for herd immunity varies by disease, but usually falls between 85% and 95%.
不同的疾病对群体免疫接种率的要求不同，但通常应在85%到95%之间。
The vaccination rate for herd immunity varies by disease, but usually falls between 85% and 95%.
不同的疾病对群体免疫接种率的要求不同，但通常应在85%到95%之间。
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