[evan_au (OP)]

There are hints that countries which routinely vaccinate against tuberculosis have a lower death rate from COVID-19.
- East Germany continued BCG vaccinations long after West Germany - and the COVID death rate is significantly lower in East Germany.
- Very high COVID death rates were expected in poor tropical countries. Apart from India, rates have not been enormously high. But these same countries have high levels of BCG vaccination. (Note that the coverage of diagnosis and quality of reporting is suspect in many of these countries).
- Is this coincidence or causation?

Clinical trials are underway, but no results published yet.

For an optimistic interview with an expert (start about 2/3 of the way through): https://after-on.com/episodes-31-60/056
For a more cautious view: https://en.wikipedia.org/wiki/BCG_vaccine#COVID-19

[Just thinking]

Clinical trials are underway, but no results published yet.

It's been a while has any further investigation into this vaccine been done yet and there's been talk about yearly vaccines for further mutations of the outbreak.