The Spanish Flu didn't begin in Spain, however, news inclusion of it did. During World War I, Spain was a neutral country with a free media that secured the story from the beginning, first reporting it from Madrid in late May of 1918. Meanwhile, Allied nations and the Central Powers had wartime sources that covered up the flu news to keep morale high. Since Spanish news sources were the main ones giving a report of influenza, many trusted it started there.
Romania was alone on the Eastern Front, a situation that far surpassed its military capabilities. Therefore, on 7 May 1918, Romania sued for peace. The prime minister of Romania, Alexandru Marghiloman, signed the Treaty of Bucharest (1918) with the Central Powers. However, this treaty was never signed by King Ferdinand of Romania.
Romania officially made peace with the Central Powers by signing the Treaty of Bucharest on 7 May 1918. Under the treaty, Romania was obliged to end the war with the Central Powers and make small territorial concessions to Austria-Hungary, ceding control of some passes in the Carpathian Mountains, and to grant oil concessions to Germany. In exchange, the Central Powers recognised the sovereignty of Romania over Bessarabia.