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WHO Calls for Heat Risk Planning at Mass Gatherings

The evidence-based guidance treats extreme heat as an operational and public-health risk.

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WHO has issued new guidance for preventing and managing heat-related illness at mass gatherings. A review of studies published between 1980 and 2025 documented almost half a million medical encounters, including more than 22,000 illnesses associated with heat.

The organization recommends a whole-of-event strategy covering venue design, water and sanitation, cooling infrastructure, scheduling, crowd flow, workforce protection, communication, real-time surveillance and medical care. WHO reported that properly organized on-site systems can manage more than 90 percent of patients at venues, although local plans must reflect the event and climate.

Source: World Health Organization, 2026-09-30.

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Vocabulary

Climate
the usual weather conditions of a place over a long period
Infrastructure
basic systems such as transport, power, and water
Source
the person, organization, or document that provides information

Comprehension

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Answer guide

The evidence-based guidance treats extreme heat as an operational and public-health risk. Add one supporting fact from the article.

Quick check

Which sentence best describes this story?

  1. The evidence-based guidance treats extreme heat as an operational and public-health risk.
  2. A preliminary WHO review found fewer deaths after access restrictions began.
  3. The 2026 campaign connects vaccination, treatment and public awareness.
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The best answer is A.

Grammar focus: Careful reporting

Notice words such as “may,” “could,” “suggests,” and “preliminary.” They show that a claim has limits or uncertainty.