I've no idea how my former loving brothers explain the Pale horseman's pandemics (Rev. 6:8) these days, but when I was stupid enough to get involved with them, the "Spanish flu pandemic' was the star example in the jws narrative claiming the end was nigh.
Anyway, I noted this video on Youtube and though it may interest thoughful readers here.
Spanish flu vs COVID-19: An Australian perspective of a pandemic
This ABC media* video records the experiences of Australians in the 1918-1919 so-called 'Spanish' Flu pandemic. (This pandemic did not start in Spain. Spain was the only neutral nation in Europe in WW1 and its newspapers were not censored censored as were most other nations, so those who knew about the epidemic started referring to it as the 'Spanish flu.'). It is generally accepted that this pandemic first came to notice in a U.S Army camp in Kansas (although, I've seen some claims that it started in Texas). In 1918. Australia's population was 5 million and 15,000 died. The current estimate (maybe that should be (guestimate) is 100 million deaths.
Australia's national government protected the country for a while by limiting maritime access, but eventually this very contagious pneumonic influenza penetrated that effort to quarantine the nation.
* ABC Media is a government owned media group
https://www.youtube.com/watch?v=-YmOnJim5wU