State and Territorial Epidemiologists Reports of Geographic Spread of Influenza

geographic_spread(years = NULL)



a vector of years to retrieve data for (i.e. 2014 for CDC flu season 2014-2015). CDC has data for this API going back to 2003 and up until the current, active flu season. Default value (NULL) means retrieve all years. NOTE: if you happen to specify a 2-digit season value (i.e. 57 == 2017-2018) the function is smart enough to retrieve by season ID vs convert that to a year.


if (FALSE) {
gs <- geographic_spread()