Retrieve weekly state-level ILI indicators per-state for a given season
a vector of years to retrieve data for (i.e.
These statistics use the proportion of outpatient visits to healthcare providers
for influenza-like illness to measure the ILI activity level within a state. They do
not, however, measure the extent of geographic spread of flu within a state. Therefore,
outbreaks occurring in a single city could cause the state to display high activity levels.
Data collected in ILINet may disproportionately represent certain populations within a state, and therefore may not accurately depict the full picture of influenza activity for the whole state.
All summary statistics are based on either data collected in ILINet, or reports from state and territorial epidemiologists. Differences in the summary data presented by CDC and state health departments likely represent differing levels of data completeness with data presented by the state likely being the more complete.
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## Not run: iwai <- ili_weekly_activity_indicators(2016) ## End(Not run)
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