MGMIMass Gathering Medicine

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AI-DRAFTED — PHYSICIAN REVIEW IN PROGRESSThe citation for this entry was checked against Crossref and PubMed, but its summary and interpretation were drafted by an AI model from the published abstract and have not yet been individually read by a physician. Read the linked source before relying on this operationally.
Guideline unverified

Mass Gatherings — CDC Yellow Book 2026: Health Information for International Travel[1]

Angelo KM (CDC) · 2025 · CDC Yellow Book (US CDC)

Summary

The US CDC's official traveler-facing mass-gatherings guidance, as the dedicated chapter of the Yellow Book 2026 edition (published April 2025). Frames mass gatherings as events large enough to strain local resources, and organizes traveler risk into communicable disease drivers (crowding, hygiene, sanitation, population dynamics — events attracting specific at-risk groups) and non-communicable hazards (temperature extremes, stampedes, environmental hazards, security situations). Written for pre-travel consultation: the clinician preparing a patient attending Hajj, an Olympics, a festival, or a large religious event.

So what

The authoritative US federal reference for the pre-travel side of event medicine — the counterpart to the on-site literature the rest of the library covers, and the natural citation for MGMI's attendee-preparation and pilgrimage pages. Its dual taxonomy (communicable drivers vs non-communicable hazards) matches the library's own domain split, and its 'events attract at-risk groups' point is the population-dynamics observation Elfaki and Alkeridy quantify. Pairs directly with Zaini: CDC says what to counsel; Zaini says how education must be delivered (origin-country, event-long, local language) to work. Freely accessible via NCBI Bookshelf.

Key findings

  • CDC's official mass-gatherings chapter, Yellow Book 2026 edition (Apr 2025)
  • Definition: gatherings large enough to strain local resources
  • Risk taxonomy: communicable (crowding/hygiene/sanitation/population dynamics) vs non-communicable (heat, stampede, environment, security)
  • Written for the pre-travel consultation use case
  • Free via NCBI Bookshelf; pairs with Zaini education-delivery evidence

Read the paper