week of june.: 259 there is some evidence of increased severity during the spring wave as compared to the fall one.: 291 the disease was prevalent again in philadelphia and neighboring counties in pennsylvania, and was observed as well in virginia and rhode island, in the winter of 1790–1791, but it was not nearly as widespread as its first two appearances.: 260 americas, eurasia 1830–1833pandemiceurasia, americas 1878scientific developmentfirst descriptions of avian influenza, termed "fowl plague," was recorded by perroncito in italy.italy 1889–1892pandemicworldwide 1901scientific development 1918–1920pandemicin march 1918, 48 soldiers died of "pneumonia" during a, outbreak at fort riley, kansas. the flu traveled unchecked eastward to new england military bases before traveling across the atlantic ocean on crowded military ships to europe amid world war i. it spread rapidly through european cities and was nicknamed "spanish flu" for the uncensored reporting in spain, as moving armies spread flu around the world. the flu returned in waves for the next 2 years.worldwide; originated in the us, some theories suggest france or other countries 1931scientific developmentrichard shope isolates the influenza a virus from pigs. 1933scientific developmentshope and his team discover the influenza a virus.united kingdom 1936medical developmentrussia 1942medical development 1945medical developmentunited states 1946organizationunited states (atlanta) 1947organizationfrance (serves worldwide) 1948organization 1952organization (research institute) 1957pandemicworldwide 1959non–human infectionunited kingdom 1961non–human infectionsouth africa 1963non–human infectionunited kingdom 1966non–human infectioncanada 1968–1970pandemicworldwide 1973program launch 1976epidemicunited states (new jersey) 1976non–human infectionaustralia 1977epidemicrussia, china, worldwide 1978medical development 1980medical developmentunited states 1983non–human infectionireland 1988infectionchina 1990–1996medical developmentunited states 1997infectionchina (hong kong) 1997infectionaustralia 1999infectionchina (hong kong) 2002infectionunited states 2003–2007infection east asia, southeast asia 2003infectionnetherlands 2004organization 2004infectioncanada 2004infectionegypt 2004non–human infectionunited states 2005organizationunited states 2005organizationunited states (new york city) 2005infectioncambodia, romania 2006organizationchina (beijing) 2007non-human infectionaustralia 2008scientific developmentworldwide 2008service launchunited states 2009–10pandemicworldwide 2011non–human infectionunited states 2012scientific development 2012scientific project/controversynetherlands (erasmus medical center), united states (university of wisconsin–madison) 2012medical developmentunited states 2013epidemicchina, vietnam 2013medical developmentunited states 2013infectionchina 2015programunited states 2017medical developmentunited states 2017scientific developmentfinland