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icon for CDC issues Level 4 warning by December 31?
Climate & Science·Pandemics

CDC issues Level 4 warning by December 31?

icon for CDC issues Level 4 warning by December 31?
Climate & Science·Pandemics

CDC issues Level 4 warning by December 31?

Dec 31

Dec 31

18% chance
Polymarket

$71,303 Vol.

18% chance
Polymarket

$71,303 Vol.

This market will resolve to "Yes" if the CDC issues a Level 4 (“Avoid All Travel”) Travel Health Notice for any disease by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". A Level 4 notice listed for any amount of time during this market’s timeframe will suffice for a "Yes" resolution. The primary resolution source for this market will be the CDC’s official Travel Health Notices page (https://wwwnc.cdc.gov/travel/notices); however, a consensus of credible reporting will also be used.Trader consensus prices "No" at an 87.5% implied probability for a CDC Level 4 Travel Health Notice—"Avoid All Travel," reserved for extreme life-threatening disease risks—by December 31, 2026, due to the complete absence of such alerts in 2026 despite vigilant surveillance. As of the CDC's May 7 update, no Level 4 or even Level 3 notices exist; the highest are Level 2 for meningococcal disease in the Democratic Republic of the Congo (March 24), yellow fever in Venezuela (March 16), and chikungunya outbreaks in Mayotte and elsewhere. These reflect localized transmission without the uncontrolled escalation historically triggering Level 4, like early COVID-19 waves. The 2025-2026 influenza season reports 155 pediatric deaths but no international travel restrictions. Ongoing CDC and WHO monitoring could shift odds if novel pathogens surge, with weekly FluView updates providing key data.

This market will resolve to "Yes" if the CDC issues a Level 4 (“Avoid All Travel”) Travel Health Notice for any disease by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No".

A Level 4 notice listed for any amount of time during this market’s timeframe will suffice for a "Yes" resolution.

The primary resolution source for this market will be the CDC’s official Travel Health Notices page (https://wwwnc.cdc.gov/travel/notices); however, a consensus of credible reporting will also be used.
Volume
$71,303
End Date
Dec 31, 2026
Market Opened
Jan 19, 2026, 3:15 PM ET

Resolver

0x65070BE91...
This market will resolve to "Yes" if the CDC issues a Level 4 (“Avoid All Travel”) Travel Health Notice for any disease by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". A Level 4 notice listed for any amount of time during this market’s timeframe will suffice for a "Yes" resolution. The primary resolution source for this market will be the CDC’s official Travel Health Notices page (https://wwwnc.cdc.gov/travel/notices); however, a consensus of credible reporting will also be used.
This market will resolve to "Yes" if the CDC issues a Level 4 (“Avoid All Travel”) Travel Health Notice for any disease by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". A Level 4 notice listed for any amount of time during this market’s timeframe will suffice for a "Yes" resolution. The primary resolution source for this market will be the CDC’s official Travel Health Notices page (https://wwwnc.cdc.gov/travel/notices); however, a consensus of credible reporting will also be used.Trader consensus prices "No" at an 87.5% implied probability for a CDC Level 4 Travel Health Notice—"Avoid All Travel," reserved for extreme life-threatening disease risks—by December 31, 2026, due to the complete absence of such alerts in 2026 despite vigilant surveillance. As of the CDC's May 7 update, no Level 4 or even Level 3 notices exist; the highest are Level 2 for meningococcal disease in the Democratic Republic of the Congo (March 24), yellow fever in Venezuela (March 16), and chikungunya outbreaks in Mayotte and elsewhere. These reflect localized transmission without the uncontrolled escalation historically triggering Level 4, like early COVID-19 waves. The 2025-2026 influenza season reports 155 pediatric deaths but no international travel restrictions. Ongoing CDC and WHO monitoring could shift odds if novel pathogens surge, with weekly FluView updates providing key data.

This market will resolve to "Yes" if the CDC issues a Level 4 (“Avoid All Travel”) Travel Health Notice for any disease by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No".

A Level 4 notice listed for any amount of time during this market’s timeframe will suffice for a "Yes" resolution.

The primary resolution source for this market will be the CDC’s official Travel Health Notices page (https://wwwnc.cdc.gov/travel/notices); however, a consensus of credible reporting will also be used.
Volume
$71,303
End Date
Dec 31, 2026
Market Opened
Jan 19, 2026, 3:15 PM ET

Resolver

0x65070BE91...
This market will resolve to "Yes" if the CDC issues a Level 4 (“Avoid All Travel”) Travel Health Notice for any disease by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". A Level 4 notice listed for any amount of time during this market’s timeframe will suffice for a "Yes" resolution. The primary resolution source for this market will be the CDC’s official Travel Health Notices page (https://wwwnc.cdc.gov/travel/notices); however, a consensus of credible reporting will also be used.

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Frequently Asked Questions

"CDC issues Level 4 warning by December 31?" is a prediction market on Polymarket where traders buy and sell "Yes" or "No" shares based on whether they believe this event will happen. The current crowd-sourced probability is 18% for "Yes." For example, if "Yes" is priced at 18¢, the market collectively assigns a 18% chance that this event will occur. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "CDC issues Level 4 warning by December 31?" has generated $71.3K in total trading volume since the market launched on Jan 19, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "CDC issues Level 4 warning by December 31?," simply choose whether you believe the answer is "Yes" or "No." Each side has a current price that reflects the market's implied probability. Enter your amount and click "Trade." If you buy "Yes" shares and the outcome resolves as "Yes," each share pays out $1. If it resolves as "No," your "Yes" shares pay $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current probability for "CDC issues Level 4 warning by December 31?" is 18% for "Yes." This means the Polymarket crowd currently believes there is a 18% chance that this event will occur. These odds update in real-time based on actual trades, providing a continuously updated signal of what the market expects to happen.

The resolution rules for "CDC issues Level 4 warning by December 31?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.