Whenever I read the news, always this one scene comes to mind.

https://www.youtube.com/watch?v=KEM46TcTAFM

Was there a lockdown?

1918 Pandemic (H1N1 virus)

https://www.cdc.gov/flu/pandemic-resources/1918-pandemic-h1n1.html

1957-1958 Pandemic (H2N2 virus)

https://www.cdc.gov/flu/pandemic-resources/1957-1958-pandemic.html

1968 Pandemic (H3N2 virus)

https://www.cdc.gov/flu/pandemic-resources/1968-pandemic.html

2009 H1N1 Pandemic (H1N1pdm09 virus)

https://www.cdc.gov/flu/pandemic-resources/2009-h1n1-pandemic.html

Influenza Historic Timeline

https://www.cdc.gov/flu/pandemic-resources/pandemic-timeline-1930-and-beyond.htm