The controller is priced at $50 USD, and will release alongside Valve's Steam Link service, which is also slated for a $50 release. The controller's worldwide pricing will be announced closer to November, Valve said. Hands-on With the Updated Valve Controller. 01:37.
Polio rose to epidemic proportions in the United States with more than 21,000 cases reported in 1952 [3]. With the development of effective vaccines against the virus during the 1950s the incidence of poliomyelitis went in decline and the last case of wild-type virus reported in the United States was in 1979.
1894 - The first major polio epidemic reported in the United States occurs in Vermont, consisting of 132 total cases, including some adults. 1908 - Polio becomes a a reportable disease entity as Austrian physicians Karl Landsteiner and E. Popper identify the polio virus. 1909 - Massachusetts begins counting polio cases. 1916 - There is a large outbreak of polio in the United States. Though the total number of affected individuals is unknown, over 9000 cases are reported in New York City alone. Attempts at controlling the disease largely involve the use of isolation and quarantine, neither of which is successful.