Releases / United States
CDC FluView, U.S. weekly influenza surveillance (ILINet outpatient influenza-like illness and clinical and public health laboratory tests), national release schedule and API
CDC. Source: U.S. Centers for Disease Control and Prevention (CDC), FluView and FluView Interactive (ILINet, WHO/NREVSS). Licence: public-domain.
Next releases
| Release | UTC | Agency local time |
|---|---|---|
| FluView | 08:00 local (UTC-05:00) | |
| FluView | 08:00 local (UTC-05:00) | |
| FluView | 08:00 local (UTC-05:00) | |
| FluView | 08:00 local (UTC-05:00) | |
| FluView | 08:00 local (UTC-05:00) | |
| FluView | 08:00 local (UTC-05:00) |
From the agency's own calendar, as of 2026-11-13. Reschedules and cancellations are in the API.
How fast it reaches the API
| Release | Measured | Median | Fastest | Slowest | Missed |
|---|---|---|---|---|---|
| FLUVIEW | 1 | 31 ms | 31 ms | 31 ms | 0 |
Time from the agency publishing to the data being on our feed, for releases caught live in the last 30 days. Every release counts, including slow ones and misses.
Get it by API
Series ids: US.ILI.WEIGHTED.NSA, US.FLU_LAB.CLIN_POSITIVE_PCT.NSA.
# pip install econfeed-client
from econfeed_client import Client
ef = Client() # ECONFEED_API_KEY from the environment
for e in ef.calendar(days=90, source="us_cdc_fluview"):
print(e.scheduled_at, e.release_name, e.reference_period)
# add as_of= for what was known then
page = ef.observations("US.ILI.WEIGHTED.NSA", start="2024-01")
# pushed seconds after release
for ev in ef.stream(sources=["us_cdc_fluview"]):
print(ev.type, ev.data.release_id)REST: GET /v1/calendar?source=us_cdc_fluview, GET /v1/series/US.ILI.WEIGHTED.NSA/observations. Webhooks: filter on source us_cdc_fluview.