Syndemic
The worst of the 20th century influenza pandemics was the 1918 pandemic, where between 20-40 percent of the world’s population became ill between 40-100 million people died. More people died of the so-called Spanish flu (caused by the H1N1 viral strain) pandemic in the single year of 1918 than during all four-years of the Black Death. The pandemic had devastating effects as disease spread along trade and shipping routes and other corridors of human movement until it had circled the globe. InIndia, the mortality rate reached 50 per 1,000 population. Arriving during the closing phase of the World War I, the pandemic impacted mobilized national armies. Half of U.S. soldiers who died in the "Great War," for example, were victims of influenza. It is estimated that almost ¾ of a million Americans died during the pandemic. In part, the death toll during the pandemic was caused by viral pneumonia characterized by extensive bleeding in the lungs resulting in suffocation. Many victims died within 48 hours of the appearance of the first symptom. It was not uncommon for people who appeared to be quite healthy in the morning to have died by sunset. Among those who survived the first several days, however, many died of secondary bacterial pneumonia. It has been argued that countless numbers of those who expired quickly from the disease were co-infected with tuberculosis, which would explain the notable plummet in TB cases after 1918.
German Jewish military personnel of World War I
Some Jews did fear marginalisation as the German public enthusiastically geared up for the Great War, but once the war began such attitudes dissipated and the general reaction of Germany's Jewry was to greet the war with enthusiasm. With the outbreak of World War I in 1914, the situation drastically changed for German Jews in the military. At the start of the war, 12,000 German Jews volunteered for the German Army. Of the 100,000 Jews who served with the German military, 70,000 fought at the front line, 12,000 were killed in action, and 3,000 were promoted to officer ranks, but they could only become officers of the reserve, not the regular army. The Iron Cross was awarded to 18,000 German Jews during the war, of which 1,000 received the first class award. Jewish-born Wilhelm Frankl became the first member of the flying corps to be awarded the Pour le Mérite. The anti-semitic "Judenzählung" of 1916 disgusted many German Jewish soldiers, being aimed at falsely proving that Jews were trying to avoid military service. For many German Jews, the war held the hope of being treated equal to non-Jewish Germans for the first time. Many Jews also held strong patriotic feelings for Germany and the belief that the war in the East against the Russian Empire would bring the liberation of their fellow Eastern European Jews from pogroms and persecution.