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Flu Trend Question

What Does Decreasing Flu Activity Mean?

A decreasing label means the flu-like-illness signal has moved down across its comparison window; it does not mean flu is over. Current national activity is moderate. Trend unavailable for the national flu-like illness signal. A trend needs three valid consecutive weekly reports through the latest reading.

15-second answer

  • Decreasing is a direction label. It says the signal is lower than the comparison period, not that flu has disappeared.
  • The current national CDC ILINet signal is moderate at 2.1% of outpatient visits for flu-like illness. Trend unavailable for the national flu-like illness signal. A trend needs three valid consecutive weekly reports through the latest reading.
  • A state can be decreasing and still have meaningful flu activity if it is coming down from a high season peak.
  • For a practical answer, read the current level, the week ending date, the season context, and the state page together.

Why this matters 1

People often read "decreasing" as "not a problem anymore." That can be misleading when the current level is still moderate or high.

Why this matters 2

This page supports the flu state pages by explaining how to combine intensity, direction, and season context before deciding which local page to send or check next.

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Source and context

How this answer is built

Updated

Week ending Oct 10

Coverage

National and state flu-like illness surveillance

Best For

Interpreting flu trend labels on state and national pages

This page should stay focused on interpretation. It should not turn a decreasing trend into medical advice or imply that every city has city-specific flu surveillance.

Methods →Data sources →Refresh cadence: Weekly, usually Fridays

FAQ

Quick questions about this answer

Does decreasing flu activity mean flu is gone?

No. It only means the surveillance signal is moving down. The current level can still be moderate or high, especially when activity is falling from a winter peak.

Why does Local Health Signal show both level and trend?

Because either one alone can mislead. Level tells you how much flu-like illness is being reported now, while trend tells you whether that signal is rising, stable, or easing.

This week

The sendable weekly version

More updates →
Weekly RoundupUpdated

What's Going Around This Week? U.S. Health Briefing

Flu-like illness: moderate; COVID-19 hospital admissions: moderate; RSV hospital admissions: low. See the source weeks and find your state or city report.

Flu-like illness

2.1% · moderate

COVID-19

1.1 per 100K · moderate

RSV

0.2 per 100K · low

Open the weekly roundup →

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