They also didn't have reliable healthcare so someone who's immunocompromised, elderly, etc couldn't go and get checked and possibly get medicine or be watched over by professionals until they're healthy.
Good thing that all Americans can regularly see doctors and afford medicine and time off work! this would be a way worse issue if the majority of Americans couldn't afford to take a week or longer off work or to see a doctor when they need to.
And it was introduced to America by Chinese laborers
Historian Mark Humphries of Canada's Memorial University of Newfoundland says that newly unearthed records confirm that one of the side stories of the war—the mobilization of 96,000 Chinese laborers to work behind the British and French lines on World War I's Western Front—may have been the source of the pandemic. Source
Here where I live the roads have tons of small cemeteries all over the place. Many thousands of people died and left entire counties empty. Not far from me is a roadside gravesite with the headstones of 16 members of the same german family. Everyone from the grandparents to the babies all died within a few days of each other. A neighbor had to bury them.
A misnomer, but yes. It was only caused the “Spanish” flu because Spain was neutral in WW1, so didn’t have wartime censorship, so the first public reports of the disease came from Spain. The flu probably broke out first In French or American army camps.