Ebola Hits South America: Brazil confirms first human-to-human transmission case within 21 days

78%

probability · 62% confidence · 21 days

Ebola spreading at unprecedented pace across Africa; Brazil risk elevated by global travel networks and South American vulnerability signals. US doctor recovered from Ebola in Germany suggests active transmission chains. Forecast expires June 22; Brazil case confirmation becomes more likely as case counts surge across multiple African nations. Forecast resolved (news-checked 2026-10-30): Brazil did not confirm any Ebola case, let alone human-to-human transmission, in the window. Suspected cases in São Paulo and Rio de Janeiro tested negative on May 31 and June 1, 2026. As of June 1, NBC reported no confirmed cases outside Congo and Uganda.…

Brunu publishes AI-generated probability forecasts on world events, markets, and policy. Forecasts update as new signals come in and are graded correct/incorrect at close — full track record at brunu.ai/forecasts. Informational only. Not financial, legal, or medical advice.