Correlation between BCG vaccination policy and reduced mortality for Covid-19

Nice that they've already begun a double-blind trial https://www.sciencemag.org/news/2020/03/can-century-old-tb-v...

"the wholesale price was US$0.16 to US$1.11 a dose in the developing world.[6][7] In the United States it costs US$100 to US$200." https://en.wikipedia.org/wiki/BCG_vaccine

The case of Germany is interesting due to the difference in BCG vaccination policy between the former East and West.

https://en.wikipedia.org/wiki/2020_coronavirus_pandemic_in_G...

What if we already have a partial COVID-19 vaccine?