WAC World Allergy Congress 2027
World Allergy Organization
- Dates
- October 20–23, 2027 Confirmed
- Location
- Florianopolis, Brazil
- Expected attendance
- About 2,500
- Therapy area
- Immunology
Key dates for WAC 2027
| Milestone | Date | Status |
|---|---|---|
| Abstract submission deadline | April 12, 2027 | Estimated |
| Late-breaking abstract deadline | October 4, 2027 | Estimated |
| Abstract notification | June 20, 2027 | Estimated |
| Meeting | October 20–23, 2027 | Confirmed |
Add all dates to your calendar
Works in Outlook, Google Calendar and Apple Calendar.
Planning ahead: WAC's abstract deadline usually falls about 6 months before the meeting. For the 2026 meeting it was April 7, 2026 (191 days ahead).
Submitting an abstract / At-a-glance
WAC 2027
- Membership required
- No
We haven't summarized WAC's 2027 abstract guidelines yet. See the official guidelines for the rules. The official guidelines always take precedence.
Common questions
When is the WAC 2027 abstract deadline?
The abstract submission deadline is April 12, 2027 (estimated), and late-breaking abstracts are due October 4, 2027 (estimated).
When and where is WAC 2027?
WAC 2027 takes place October 20–23, 2027 in Florianopolis, Brazil. The dates are confirmed.
How many people attend WAC?
About 2,500 people are expected at WAC 2027.
Past editions
| Year | Meeting dates | City | Abstract deadline |
|---|---|---|---|
| 2026 | October 15–18, 2026 | Kyoto. | April 7, 2026 |
| 2025 | February 28 – March 3, 2025 | San Diego, CA | Not recorded |
| 2024 | September 27–29, 2024 | Libson | Not recorded |
| 2023 | December 1–3, 2023 | Bangkok | Not recorded |
Last updated October 22, 2026. Source: Orbytel Group conference database. Dates marked estimated or not yet announced are our projections, not the organizer's.