title: GSM7044115: Positive human nasopharyngeal swab group 7; Homo sapiens; Severe acute respiratory syndrome coronavirus 2; OTHER
library_construction_protocol: RNA from positive samples was extracted with MGIEasy Nucleic Acid Extraction Kit. Libraries were pooled by Biomex Fx. Each sample was pooled (7uL/sample)  and library PCR products were purified twice with SPRIselect beads ratio 1:1 (beads/library)  (A66514, Beckman Coulter)