Selected article for: "absence presence and absolute number"
Author: Martha K Berg; Qinggang Yu; Cristina E Salvador; Irene Melani; Shinobu Kitayama
Title: Mandated Bacillus Calmette-Guérin (BCG) vaccination predicts flattened curves for the spread of COVID-19
  • Document date: 2020_4_7
    • ID: 44zlnswd_3
    Snippet: Over the last century, many countries adopted universal policies of mandatory BCG vaccination to fight against tuberculosis, which was then a major threat. Since then, many countries maintained such a policy at least until very recently (e.g., China, Ireland, Finland, and France). Some other countries terminated the policies as tuberculosis ceased to be a threat (e.g., Australia, Spain, Ecuador). Of note, some countries never mandated BCG vaccina.....
    Document: Over the last century, many countries adopted universal policies of mandatory BCG vaccination to fight against tuberculosis, which was then a major threat. Since then, many countries maintained such a policy at least until very recently (e.g., China, Ireland, Finland, and France). Some other countries terminated the policies as tuberculosis ceased to be a threat (e.g., Australia, Spain, Ecuador). Of note, some countries never mandated BCG vaccination (e.g., U.S., Italy, and Lebanon). Therefore, there is sufficient variability in the presence or absence of such policies distributed across different regions of the world, which makes it possible to draw a systematic comparison. A cross-national analysis, however, is inherently challenging. Among others, in this particular case, different countries have varying onsets in the current pandemic, which makes it problematic to test the absolute number of confirmed cases or deaths (as in, for example, (10, 11) ).

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