For example, scientists never confirmed the origin of smallpox before the disease was eradicated through a global vaccination program. In the case of Severe Acute Respiratory Syndrome (SARS)  a disease caused by a beta coronavirus, like the current coronavirus  researchers first identified the virus in February 2003. From a public health perspective, if a virus has transitioned to being spread mostly by human-to-human contact, discovering its origins is not as essential to strategies for containing the disease. HOW IMPORTANT IS IT TO UNDERSTAND THE ORIGIN? They also believe that the risk of 'accidental culturing' of the virus is 'extremely low'.
for example, scientists found the virus in north america.
( z0 find :ARG0 ( z1 scientist ) :ARG0-of ( z2 exemplify ) :ARG1 ( z3 virus ) :location ( z4 continent :name ( z5 name :op "North" :op "America" ) ) )
(z0 / find-01
    :ARG0 (z1 / scientist)
    :ARG0-of (z2 / exemplify-01)
    :ARG1 (z3 / virus)
    :location (z4 / continent
                  :name (z5 / name
                            :op1 "North"
                            :op2 "America")))
for example , scientists found the virus in north america .
z0 :ARG0 z1
z0 :ARG0-of z2
z0 :ARG1 z3
z0 :location z4
z4 :name z5
z5 :op1 1
z5 :op2 0