Ka kammala wannan magana: Bayan annoba ta biyu da ta kashe mutane da yawa a ƙarshen shekara ta 1918, adadin mutanen da suka kamu da cutar ya ragu sosai. A Philadelphia, alal misali, mutane 4,597 suka mutu a makon da ya ƙare a ranar 16 ga Oktoba, amma a ranar 11 ga Nuwamba, cutar mura ta kusan ɓacewa daga birnin. Dalili ɗaya da ya sa cutar ta ragu da sauri shi ne domin likitoci sun ƙware wajen hanawa da kuma magance ciwon huhu da ya taso bayan waɗanda suka kamu da cutar sun kamu da cutar. Koyaya, John Barry ya bayyana a cikin littafinsa na 2004 "" cewa masu bincike basu sami wata hujja da zata goyi bayan wannan matsayin ba. Wani ra'ayi kuma ya ce ƙwayar cutar ta 1918 ta canja da sauri zuwa wani irin da ba shi da haɗari sosai. Irin wannan juyin juya halin mura abu ne na yau da kullun: akwai yanayin ƙwayoyin cuta masu saurin kamuwa da cuta su zama marasa lahani tare da lokaci, yayin da masu karɓar nau'ikan haɗari masu haɗari ke mutuwa. Wasu lokuta masu mutuwa sun ci gaba har zuwa Maris 1919, suna kashe dan wasa daya a cikin
1919 gasar cin kofin Stanley.