What were the effects of the world wide flu epidemic that erupted during the war?

The worldwide flu epidemic, known as the Spanish flu, which erupted during World War I, had devastating effects, infecting about one-third of the global population. It led to an estimated 50 million deaths, overwhelming healthcare systems already strained by war. The pandemic also exacerbated social and economic disruptions, contributing to labor shortages and influencing post-war recovery efforts. Additionally, the experience of the epidemic highlighted the importance of public health measures and the need for coordinated responses to future outbreaks.