But such speculation needs to be tested  we cant just rely on an educated guess. Get CNN Health's weekly newsletter Sign up here to get The Results Are In with Dr. Sanjay Gupta every Tuesday from the CNN Health team. As such, it is sometimes harvested from people who have recovered from a disease and transfused into patients who are fighting it. Plasma is the clear, yellowish liquid part of the blood which carries red and white blood cells and platelets around the body. Prof Paul Morgan, the director of the Systems Immunity Research Institute at Cardiff University and a member of the British Society for Immunologys expert taskforce on immunology and Covid-19, said there were other reasons for optimism.
This trial is related to someone else that has a disease.
( z0 relate :ARG1 ( z1 try :mod ( z2 this ) ) :ARG2 ( z3 someone :ARG0-of ( z4 have :ARG1 ( z5 disease ) ) :mod ( z6 else ) ) )
(z0 / relate-01
    :ARG1 (z1 / try-02
              :mod (z2 / this))
    :ARG2 (z3 / someone
              :ARG0-of (z4 / have-03
                           :ARG1 (z5 / disease))
              :mod (z6 / else)))
This trial is related to someone else that has a disease .
z1 :mod z2
z0 :ARG1 z1
z0 :ARG2 z3
z3 :mod z6
z3 :ARG0-of z4
z4 :ARG1 z5