CNN Top News - The quest for longer-lasting Covid-19 vaccines

2022.05.21 00:05

The quest for longer-lasting Covid-19 vaccines

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As waves of new coronavirus variants circulate the globe, one thing has become clear: human immunity against the virus fades over time.

원문출처 : https://www.cnn.com/2022/05/20/health/mrna-vaccine-technology-covid-19-durability/index.html

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