1918-1919 20thcentury americanhistory biologicalsciences contagious disease-outbreak earthsciences epidemic epidemics global-crisis health healthcare healthcare-system healthcare-workers history humandisease infectious-diseases influenza influenzaepidemic influenzaepidemic(1918-1919)fast(ocolc)fst01754995 medical medical-breakthroughs medical-history medicine modernhistory newyorktimesbestseller nonfiction nutrition nyt:combined-print-and-e-book-nonfiction=2020-03-29 pandemic physical public-health public-policy science scientific-research socialsciences viral-disease virology world-war-i