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. But such speculation needs to be tested  we cant just rely on an educated guess. However, data were still being collected in randomized controlled trials  the gold standard  to study the safety and effectiveness of the treatment. 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. The research involved 464 adults with moderate Covid-19 who were admitted to hospitals in India between April and July.
Separating patients from systemic safety trials is beyond our reach.
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(z0 / reach-01
    :ARG0 (z1 / we)
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              :ARG0 z1
              :ARG1 (z3 / patient)
              :ARG2 (z4 / try-01
                        :ARG1 (z5 / safe-01
                                  :mod (z6 / systemic))))
    :degree (z7 / beyond))
Separating patients from systemic safety trials is beyond our reach .
z2 :ARG1 z3
z5 :mod z6
z4 :ARG1 z5
z2 :ARG2 z4
z2 :ARG0 z1
z0 :ARG0 z1
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