The world has experienced several epidemics posing serious threat to global public health,including the 2002 severe acute respiratory syndrome(SARS)epidemic that caused 800 deaths out of about 8000 cases,the 2009 H1N1...The world has experienced several epidemics posing serious threat to global public health,including the 2002 severe acute respiratory syndrome(SARS)epidemic that caused 800 deaths out of about 8000 cases,the 2009 H1N1 pandemic with 18500 deaths,the 2012 Middle East respiratory syndrome(MERS)epidemic that caused 800 deaths out of 2500 cases,the 2014 Ebola outbreak with 28616 cases and 11310 deaths,and the current coronavirus disease(COVID-19)pandemic with more than 35000 deaths out of over 730000 confirmed cases till now.Emerging infectious diseases continue to infect and reduce human populations.The COVID-19 pandemic has spread to more than 114 countries before it was officially declared as a pandemic by the WHO on the 11th March 2020.Here,the first set of index cases inAfrica,and the differences between SARS-CoV-2 and other coronaviruses in addition to the preventive strategies on the emergence of COVID-19 were reviewed.展开更多
文摘The world has experienced several epidemics posing serious threat to global public health,including the 2002 severe acute respiratory syndrome(SARS)epidemic that caused 800 deaths out of about 8000 cases,the 2009 H1N1 pandemic with 18500 deaths,the 2012 Middle East respiratory syndrome(MERS)epidemic that caused 800 deaths out of 2500 cases,the 2014 Ebola outbreak with 28616 cases and 11310 deaths,and the current coronavirus disease(COVID-19)pandemic with more than 35000 deaths out of over 730000 confirmed cases till now.Emerging infectious diseases continue to infect and reduce human populations.The COVID-19 pandemic has spread to more than 114 countries before it was officially declared as a pandemic by the WHO on the 11th March 2020.Here,the first set of index cases inAfrica,and the differences between SARS-CoV-2 and other coronaviruses in addition to the preventive strategies on the emergence of COVID-19 were reviewed.
