Before 4 December 2024, will the World Health Organization (WHO) or US CDC report a human case of H5N1 avian influenza infection in the Western Hemisphere where sustained human-to-human transmission is the suspected cause?

Started Mar 29, 2024 05:00PM UTC
Closed Dec 04, 2024 08:01AM UTC
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H5N1 avian influenza has recently begun killing thousands of mammals in South America, and mammalian cases are being reported in cases in the US (UC Davis, Science.org, KFF News). Human cases are rare and are generally suspected to have originated from contact with infected animals, but the prospect of human-to-human transmission has health officials concerned (WHO - Influenza Monthly Risk Assessment, CDC - Avian Flu, CDC). WHO defines "sustained human-to-human transmission" as "transmitting easily from one person to the next and then further onward" (STAT).

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The question closed "No" with a closing date of 4 December 2024.

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Possible Answer Correct? Final Crowd Forecast
Yes 9%
No 91%

Crowd Forecast Profile

Participation Level
Number of Forecasters 30
Average for questions older than 6 months: 187
Number of Forecasts 162
Average for questions older than 6 months: 542
Accuracy
Participants in this question vs. all forecasters average

Most Accurate

Relative Brier Score

1.
-0.016811
3.
-0.015761
4.
-0.015121
5.
-0.014689

Recent Consensus, Probability Over Time

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