The CDC uses a unique "Morbidity and Mortality Weekly Report" identifier for each week that starts at 1 (Ref: < https://www.cdc.gov/mmwr/preview/mmwrhtml/su6004a9.htm>). This data frame consists of 4 columns:
wk_start: Start date (Sunday) for the week (
wk_end: End date (Saturday) for the week (
year_wk_num: The week of the calendar year
mmwrid: The unique MMWR identifier
These can be "left-joined" to data provided from the CDC to perform MMWR identifier
to date mappings.
A data frame with 4,592 rows and 4 columns