图/CDC
EarlyTransmissionDynamicsinWuhan,China,ofNovelCoronavirus–InfectedPneumonia
Theinitialcasesofnovelcoronavirus(COVID-19)-infectedpneumoniaoccurredinWuhan,HubeiProvince,China,inDecemberandJanuary.
AmongthefirstpatientswithconfirmedCOVID-19-infectedpneumonia,themedianagewas59yearsand56%weremale.Themajorityofcases(55%)withonsetbeforeJanuary1,,werelinkedtotheHuananSeafoodWholesaleMarket,as