Spanish flu or Spanish influenza, also known as purulent bronchitis, may refer to:

the 1918 flu pandemic where 500 million people worldwide were infected with H1N1 influenza A virus between 1918 and 1920, killing from 20 to 100 million people
the Influenza A virus subtype H1N1 which caused the influenza pandemic between 1918 and 1920, as well as the 2009 swine flu pandemic and 1977 Russian flu pandemic

See also

Flu (disambiguation)
Influenzavirus, the viruses that cause influenza disease
Influenza pandemic, "the influenza" global mass disease for a given year
If the blockage is beyond the confluence of the pancreatic duct, this may cause gallstone pancreatitis. In some instances of biliary obstruction, the bile may become infected by bacteria resulting in ascending cholangitis. Society and culture
In medical theories prevalent in the West from Classical Antiquity to the Middle Ages, the bodys health depended on the equilibrium of four "humors", or vital fluids, two of which related to bile: blood, phlegm, "yellow bile" (choler), and "black bile". These "humors" are believed to have their roots in the appearance of a blood sedimentation test made in open air, which exhibits a dark clot at the bottom ("black bile"), a layer of unclotted erythrocytes ("blood"), a layer of white blood cells ("phlegm") and a layer of clear yellow serum ("yellow bile").Excesses of black bile and yellow bile were thought to produce depression and aggression, respectively, and the Greek names for them gave rise to the English words cholera (from Greek χολή kholē, "bile") and melancholia. In the former of those senses, the same theories explain the derivation of the English word bilious from bile, the meaning of gall in English as "exasperation" or "impudence", and the Latin word cholera, derived from the Greek kholé, which was passed along into some Romance languages as words connoting anger, such as colère (French) and cólera (Spanish). Soap
Soap can be mixed with bile from mammals, such as ox gall.