From Pale Rider: The Spanish Flu of 1918 and How It Changed the World, by Laura Spinney (PublicAffairs, 2017), Kindle pp. 63-65:
When the flu arrived in Spain in May, most Spanish people, like most people in general, assumed that it had come from beyond their own borders. In their case, they were right. It had been in America for two months already, and France for a matter of weeks at least. Spaniards didn’t know that, however, because news of the flu was censored in the warring nations, to avoid damaging morale (French military doctors referred to it cryptically as maladie onze, ‘disease eleven’). As late as 29 June, the Spanish inspector general of health, Martín Salazar, was able to announce to the Royal Academy of Medicine in Madrid that he had received no reports of a similar disease elsewhere in Europe. So who were Spaniards to blame? A popular song provided the answer. The hit show in Madrid at the time the flu arrived was The Song of Forgetting, an operetta based on the legend of Don Juan. It contained a catchy tune called ‘The Soldier of Naples’, so when a catchy disease appeared in their midst, Madrileños quickly dubbed it the ‘Naples Soldier’.
Spain was neutral in the war, and its press was not censored. Local papers duly reported the havoc that the Naples Soldier left in its wake, and news of the disruption travelled abroad. In early June, Parisians who were ignorant of the ravages the flu had caused in the trenches of Flanders and Champagne learned that two-thirds of Madrileños had fallen ill in the space of three days. Not realising that it had been theirs longer than it had been Spain’s, and with a little nudging from their governments, the French, British and Americans started calling it the ‘Spanish flu’. Not surprisingly, this label almost never appears in contemporary Spanish sources. Practically the only exception is when Spanish authors write to complain about it. ‘Let it be stated that, as a good Spaniard, I protest this notion of the “Spanish fever”,’ railed a doctor named García Triviño in a Hispanic medical journal. Many in Spain saw the name as just the latest manifestation of the ‘Black Legend’, anti-Spanish propaganda that grew out of rivalry between the European empires in the sixteenth century, and that depicted the conquistadors as even more brutal than they were (they did bind and chain the Indians they subjugated, but they probably did not–as the legend claimed–feed Indian children to their dogs).
Further from the theatre of war, people followed the time-honoured rules of epidemic nomenclature and blamed the obvious other. In Senegal it was the Brazilian flu and in Brazil the German flu, while the Danes thought it ‘came from the south’. The Poles called it the Bolshevik disease, the Persians blamed the British, and the Japanese blamed their wrestlers: after it first broke out at a sumo tournament, they dubbed it ‘sumo flu’.
Some names reflected a people’s historic relationship with flu. In the minds of the British settlers of Southern Rhodesia (Zimbabwe), for example, flu was a relatively trivial disease, so officials labelled the new affliction ‘influenza (vera)’, adding the Latin word vera, meaning ‘true’, in an attempt to banish any doubts that this was the same disease. Following the same logic, but opting for a different solution, German doctors realised that people would need persuading that this new horror was the ‘fashionable’ disease of flu–darling of the worried well–so they called it ‘pseudo-influenza’. In parts of the world that had witnessed the destructive potential of ‘white man’s diseases’, however, the names often conveyed nothing at all about the identity of the disease. ‘Man big daddy’, ‘big deadly era’, myriad words meaning ‘disaster’–they were expressions that had been applied before, to previous epidemics. They did not distinguish between smallpox, measles or influenza–or sometimes even famines or wars.
Some people reserved judgement. In Freetown, a newspaper suggested that the disease be called manhu until more was known about it. Manhu, a Hebrew word meaning ‘what is it?’, was what the Israelites asked each other when they saw a strange substance falling out of the sky as they passed through the Red Sea (from manhu comes manna–bread from heaven). Others named it commemoratively. The residents of Cape Coast, Ghana called it Mowure Kodwo after a Mr Kodwo from the village of Mouri who was the first person to die of it in that area. Across Africa, the disease was fixed for perpetuity in the names of age cohorts born around that time. Among the Igbo of Nigeria, for example, those born between 1919 and 1921 were known as ogbo ifelunza, the influenza age group. ‘Ifelunza’, an obvious corruption of ‘influenza’, became incorporated into the Igbo lexicon for the first time that autumn. Before that, they had had no word for the disease.
As time went on, and it transpired that there were not many local epidemics, but one global pandemic–it became necessary to agree on a single name. The one that was adopted was the one that was already being used by the most powerful nations on earth–the victors in the Great War. The pandemic became known as the Spanish flu–ispanka, espanhola, la grippe espagnole, die Spanische Grippe–and a historical wrong became set in stone.