COVID-19 <%ec%a7%88%eb%b3%91%ed%86%b5%ec%a0%9c%ec%98%88%eb%b0%a9%ec%84%bc%ed%84%b0 class="post-title"> More than 80% of Americans over 16 have some immunity against COVID-19: CDC %ec%a7%88%eb%b3%91%ed%86%b5%ec%a0%9c%ec%98%88%eb%b0%a9%ec%84%bc%ed%84%b0>
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