“…Based on the evidence of a rapidly increasing incidence of infections [11] and the possibility of transmission by asymptomatic carriers [12] , SARS-CoV-2 can be transmitted effectively among humans and exhibits high potential February 20, 2020;7:4 ] for a pandemic [5 , 10 , 13] . In addition to the high transmission efficiency of SARS-CoV-2, the advancement and convenience of global travel could further enhance its worldwide spread [12] . On 30 January 2020, the WHO declared the COVID-19 outbreak as the sixth public health emergency of international concern, following H1N1 (2009), polio (2014), Ebola in West Africa (2014), Zika (2016) and Ebola in the Democratic Republic of Congo (2019).…”