????1200??? ??????2????
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????????????????????????????????????????????????????????????(???)
???????????????????????21??????1200????????????????????????????????????????24????21??????1000??????????????????????????????
??????????(John Hopkins University)???22????????????4156?1983????113?5289??????839?9689????22?2965??
??????????????????21?????????????6???21???6?2000????20??6?315????21???????1237??????????933???10????700?????8?19??????
???????????????????????13??????????????????????????????????????????????????????????????????????????????????2.7%????????
?9??10????????????????????????????????????????????????(Covid Tracking Project)?19???120??????????21???87???
??????????????9?4.6%????5.6%?????????????????????21??4?271????8?21???????10??????31%?
?????????????????????????????????????21????????4000??????????????????????
???????????????????????????????????5???????????1????????????????
???????????????????????????????????????????????????????????????????????????
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