Uses the data source from the
and provides flu reporting data as either a single data frame or a list of
data frames (depending on whether either
WHO NREVSS or
(or both) is chosen.
1 2 3
one of "
depends on the
either of "
a vector of years to retrieve data for (i.e.
A lookup table between HHS regions and their member states/territories
is provided in
If only a single
data_source is specified, then a single
data.frame is returned, otherwise a named list with each
data.frame is returned.
There is often a noticeable delay when making the API request to the CDC.
This is not due to a large download size, but the time it takes for their
servers to crunch the data. Wrap the function call in
if you would like to see what's going on.
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