Author: STEFAN Kirov
Title: Association Between BCG Policy is Significantly Confounded by Age and is Unlikely to Alter Infection or Mortality Rates Document date: 2020_4_11
ID: k9eg29rz_10
Snippet: While observational studies are a valid and useful tool, there are also serious obstacles interpreting the data correctly (14) . In the specific case of the correlation between BCG vaccination policy and COVID19 outcomes it is clear that important confounding factors may have been missed. An excellent outline of these obstacles was given by Emily MacLean (15) . In addition to missing hidden factors, the critique in the blog goes further to challe.....
Document: While observational studies are a valid and useful tool, there are also serious obstacles interpreting the data correctly (14) . In the specific case of the correlation between BCG vaccination policy and COVID19 outcomes it is clear that important confounding factors may have been missed. An excellent outline of these obstacles was given by Emily MacLean (15) . In addition to missing hidden factors, the critique in the blog goes further to challenge the biological plausibility of the BCG vaccine-COVID19 connection. It seems this is a very reasonable concern, given that the only established connection without crediting the original authors.
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