I've read the study:
https://www.medrxiv.org/content/10.1101/2020.03.24.20042937v1
showing that the BCG vaccination status may influence the susceptibility to covid-19 in a population. It also hints at the possibility of further studies which can be done in order to better understand the phenomenon (for example in the USA one can found a lot of people having different vaccination status living with the same standard of general health care). Can someone translate in layman terms if preventive BCG vaccination against covid-19 is close to be recommendable or there is still a lot to be done before recommending.