This dataset, influenza_us_1975_df, is a data frame containing influenza-like illness (ILI) data for the lower 48 US states and District of Columbia during the 1975-76 season, which was dominated by the A H3N2 Victoria strain.
data(influenza_us_1975_df)A data frame with 49 observations (states + DC) and 7 variables:
State identifier (integer)
State abbreviation (factor with 51 levels)
State population (integer)
Geographic latitude (numeric)
Geographic longitude (numeric)
Week of season start (integer)
Week of peak activity (integer)
The dataset name has been kept as 'influenza_us_1975_df' to avoid confusion with other datasets in the R ecosystem. This naming convention helps distinguish this dataset as part of the PulmoDataSets package. The suffix 'df' indicates that this is a standard data frame. The original content has not been modified in any way.