If they did not, his administration would explore every legal avenue at our disposal, he said. It was really the vaccine, she said. The FAQ notes that the CDC defines a close contact as taking place when someone comes within six feet of a coronavirus case and remains there for 15 minutes or longer within a 24-hour period. Officials have said they expect updated safety guidelines before fall, but they have not yet said whether social distancing would remain. Dr.
Scientists overcome all diseases usingvaccine.
( z0 overcome :ARG0 ( z1 scientist ) :ARG1 ( z2 disease :ARG2-of ( z3 use ) :mod ( z4 all ) ) )
(z0 / overcome-01
    :ARG0 (z1 / scientist)
    :ARG1 (z2 / disease
              :ARG2-of (z3 / use-01)
              :mod (z4 / all)))
Scientists overcome all diseases usingvaccine .
z0 :ARG0 z1
z2 :mod z4
z0 :ARG1 z2
z2 :ARG2-of z3