Science and Technology · Kalshi ·August 18, 2026 ·Edited by Samuel Jo

WHO May Declare Hantavirus a Public Health Emergency this Year

The World Health Organization is considering declaring Hantavirus a Public Health Emergency of International Concern, a move that could mobilize global resources to combat the disease. The WHO has been monitoring the spread of Hantavirus, which has caused outbreaks in several countries. According to traders, Hantavirus is an overwhelming favorite to not be declared a Public Health Emergency of International Concern this year, with odds of 93% that the WHO will make the declaration. Despite this, the market's essentially flat 24-hour move in odds suggests that traders are not changing their views.

Background

Hantavirus is a viral disease that can cause severe respiratory and kidney symptoms. The WHO has been working to develop a vaccine and treatment for the disease. In recent years, there have been several outbreaks of Hantavirus in the United States and other countries. The WHO typically declares a Public Health Emergency of International Concern when a disease poses a significant threat to global health security.

The precedent

• The WHO has declared a Public Health Emergency of International Concern for several diseases in recent years, including Ebola and Zika.

Context compiled by Crowdtells from the public record — verify before relying on it.

What to watch

The WHO is expected to make a decision on declaring Hantavirus a Public Health Emergency of International Concern by the end of the year. A move in the odds that suggests a shift in the WHO's views on the disease could signal a change in the market's expectations.

AI-written briefing grounded in 1 source and the live market, edited by Samuel Jo. Odds are crowd probabilities, not advice — how this works.