Widespread SARS-CoV-2 Transmission Despite Limited Reported Cases and Clinical Disease: Exploring the Role of Pre-Existing Humoral Immunity to SARS-CoV-2 in Eastern Sierra Leone
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Background: Since December 2019, SARS-CoV-2 has infected over 700 million people and caused > 7 million deaths. While much of the global north was severely affected, sub-Saharan Africa was relatively spared. Possible reasons incl... ...
