id author title date pages extension mime words sentences flesch summary cache txt cord-298867-hzshnq7b Raham, T. F. Impact of Duration of Cessation of Mass BCG Vaccination Programs on Covid -19 Mortality 2020-08-23 .txt text/plain 1971 160 51 At early times during COVID-19 pandemic heterogeneous immunity towards (SARS-CoV-2), was hypothesized and statistical correlation between of BCG vaccination practices and COVID-19 mortality variances among countries was statistically proved . Through applying stem-leaf plot for exploring data screening behavior concerning Covid-19 Mortality for obsolescence duration of cessation of mass BCG vaccination programs, as well as (nonlinear regression of compound model) for predicted shape behavior for that group. Results: Slope value shows highly significant effectiveness of obsolescence of cessation of mass BCG vaccination programs on Covid -19 mortality at P-value<0.000. . https://doi.org/10.1101/2020.08.20.20178889 doi: medRxiv preprint CoV-2) by different way that is the cessation duration of BCG programs in countries which stopped BCG vaccinations programs. ./cache/cord-298867-hzshnq7b.txt ./txt/cord-298867-hzshnq7b.txt