The toxic second period of the 1918-1919 influenza panepidemic in Hungary.
D000367:Age Factors; D004196:Disease Outbreaks / Q000266:history*; D006470:Hemorrhage / Q000266:history; D006561:Herpes Simplex / Q000266:history; D049673:History, 20th Century; D006801:Humans; D006814:Hungary; D007231:Infant, Newborn; D007251:Influenza, Human / Q000266:history*