Katarína Boďová, Vladimír Boža, Broňa Brjeová, RIchard Kollár, Katarína Mikušová, Tomáš Vinař. Time-adjusted Analysis Shows Weak Associations Between BCG Vaccination Policy and COVID-19 Disease Progression. Technical Report doi:10.1101/2020.05.01.20087809, medRxiv, May 2020.

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Abstract:

In this study, we ascertain the associations between BCG vaccination 
policies and progression of COVID-19 through analysis of various time-
adjusted indicators either directly extracted from the incidence and death 
reports, or estimated as parameters of disease progression models. We 
observe weak correlation between BCG vaccination status and indicators 
related to disease reproduction characteristics. We did not find any 
associations with case fatality rates (CFR), but the differences in CFR 
estimates are at present likely dominated by differences in testing and case 
reporting between countries.

Last update: 01/07/2021