Although the difference between findings of the groups did not reach statistical significance, it is worth mentioning that antibodies against SARS-CoV-2 were detected in only 1.3% (2 of 153) placebo recipients, compared to 4.7% (7 of 148) BCG recipients (p = 0.099).
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ACTIVATE-2: A Double-Blind Randomized Trial of BCG Vaccination Against COVID-19 in Individuals at Risk.
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