An ecological study to evaluate the association of Bacillus Calmette-Guerin (BCG) vaccination on cases of SARS-CoV2 infection and mortality from COVID-19.

PLoS One · 2020 · PMC7746266 · PMID 33332418

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showed a trendno p-value reported

Univariable log-linear regression models showed a trend towards a weakening of the association over time.

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