As Daszak mentioned December 19 interview quoted , Wuhan researchers unable develop vaccines coronaviruses designed infect human cells.They would defenseless SARS2 virus , generated lab , Beijing colleagues SARS1.A second reason severe danger novel coronaviruses required levels lab safety.There four degrees safety , designated BSL1 BSL4 , BSL4 restrictive designed deadly pathogens like Ebola virus.The Wuhan Institute Virology new BSL4 lab , state readiness considerably alarmed State Department inspectors visited Beijing embassy 2018. “ The new lab serious shortage appropriately trained technicians investigators needed safely operate high-containment laboratory , ” inspectors wrote cable January 19 , 2018.The real problem , however , unsafe state Wuhan BSL4 lab fact virologists worldwide ’ like working BSL4 conditions .