However, the case is not completely closed. Democratic Senator Mark Warner, the committee's chairman, said he was 'dismayed' there had been no hearing last year. While the closest known viruses to Covid-19 have been found in bats, the 'evolutionary distance' between them is thought to be 'several decades'. Because nobody has identified a virus thats 100% identical to SARS-CoV-2 in any animal, there is still room for researchers to ask about other possibilities.HOW LONG DOES IT TAKE TO CONFIRM THE ORIGIN OF A VIRUS? There are probabilities, and there are possibilities, said Banerjee.
human observation over a potential Neanderthal virus identified inppedose lane.
( z0 observe :ARG0 ( z1 human ) :ARG1 ( z2 virus :ARG1-of ( z3 identify :location ( z4 lane ) ) :mod ( z5 taxon :name ( z6 name :op "Neanderthal" :op "United" ) :mod ( z7 any ) ) :mod ( z8 potential ) ) )
(z0 / observe-01
    :ARG0 (z1 / human)
    :ARG1 (z2 / virus
              :ARG1-of (z3 / identify-01
                           :location (z4 / lane))
              :mod (z5 / taxon
                       :name (z6 / name
                                 :op1 "Neanderthal"
                                 :op2 "United")
                       :mod (z7 / any))
              :mod (z8 / potential)))
human observation over a potential Neanderthal virus identified inppedose lane .
z0 :ARG0 z1
z5 :name z6
z6 :op1 0
z2 :mod z5
z2 :mod z8
z0 :ARG1 z2
z2 :ARG1-of z3
z5 :mod z7
z6 :op2 1
z3 :location z4